Finding the Fourth Proportional to 1,212,801,724, 1,673,671,422.72 and 655,884,771.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,212,801,724 : 1,673,671,422.72 = 655,884,771.10 : x
2. Step 2: Convert to fraction form
   1,212,801,724/1,673,671,422.72 = 655,884,771.10/x
3. Step 3: Cross multiply
   1,212,801,724x = 1,673,671,422.72 × 655,884,771.10
4. Step 4: Simplify right side
   1,212,801,724x = 1,097,735,597,987,318,656
5. Step 5: Solve for x
   x = 1,097,735,597,987,318,656/1,212,801,724
6. Step 6: Final answer
   x = 905,123,711.70