Finding the Fourth Proportional to 2,238,978.45, 3,089,791.16 and 1,272,110.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238,978.45 : 3,089,791.16 = 1,272,110.01 : x
2. Step 2: Convert to fraction form
   2,238,978.45/3,089,791.16 = 1,272,110.01/x
3. Step 3: Cross multiply
   2,238,978.45x = 3,089,791.16 × 1,272,110.01
4. Step 4: Simplify right side
   2,238,978.45x = 3,930,554,257,084.96
5. Step 5: Solve for x
   x = 3,930,554,257,084.96/2,238,978.45
6. Step 6: Final answer
   x = 1,755,512.32