Finding the Fourth Proportional to 1,070,791,018.88, 1,602,428,814.84 and 860,184,196.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,070,791,018.88 : 1,602,428,814.84 = 860,184,196.83 : x
2. Step 2: Convert to fraction form
   1,070,791,018.88/1,602,428,814.84 = 860,184,196.83/x
3. Step 3: Cross multiply
   1,070,791,018.88x = 1,602,428,814.84 × 860,184,196.83
4. Step 4: Simplify right side
   1,070,791,018.88x = 1,378,383,943,070,394,112
5. Step 5: Solve for x
   x = 1,378,383,943,070,394,112/1,070,791,018.88
6. Step 6: Final answer
   x = 1,287,257,661.64