Finding the Fourth Proportional to 1,143,810.72, 1,578,459.42 and 634,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,143,810.72 : 1,578,459.42 = 634,513.50 : x
2. Step 2: Convert to fraction form
   1,143,810.72/1,578,459.42 = 634,513.50/x
3. Step 3: Cross multiply
   1,143,810.72x = 1,578,459.42 × 634,513.50
4. Step 4: Simplify right side
   1,143,810.72x = 1,001,553,811,192.17
5. Step 5: Solve for x
   x = 1,001,553,811,192.17/1,143,810.72
6. Step 6: Final answer
   x = 875,628.98