Finding the Fourth Proportional to 1,146,146,113.83, 1,581,672,129.15 and 644,357,134.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146,146,113.83 : 1,581,672,129.15 = 644,357,134.22 : x
2. Step 2: Convert to fraction form
   1,146,146,113.83/1,581,672,129.15 = 644,357,134.22/x
3. Step 3: Cross multiply
   1,146,146,113.83x = 1,581,672,129.15 × 644,357,134.22
4. Step 4: Simplify right side
   1,146,146,113.83x = 1,019,161,720,406,831,488
5. Step 5: Solve for x
   x = 1,019,161,720,406,831,488/1,146,146,113.83
6. Step 6: Final answer
   x = 889,207,499.91