Finding the Fourth Proportional to 1,354,636,598.76, 1,868,979,555 and 789,721,610.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354,636,598.76 : 1,868,979,555 = 789,721,610.76 : x
2. Step 2: Convert to fraction form
   1,354,636,598.76/1,868,979,555 = 789,721,610.76/x
3. Step 3: Cross multiply
   1,354,636,598.76x = 1,868,979,555 × 789,721,610.76
4. Step 4: Simplify right side
   1,354,636,598.76x = 1,475,973,544,652,108,032
5. Step 5: Solve for x
   x = 1,475,973,544,652,108,032/1,354,636,598.76
6. Step 6: Final answer
   x = 1,089,571,584.00