Finding the Fourth Proportional to 989,814.72, 1,365,948.06 and 537,105.72

Step by Step Solution

1. Step 1: Write the proportion equation
   989,814.72 : 1,365,948.06 = 537,105.72 : x
2. Step 2: Convert to fraction form
   989,814.72/1,365,948.06 = 537,105.72/x
3. Step 3: Cross multiply
   989,814.72x = 1,365,948.06 × 537,105.72
4. Step 4: Simplify right side
   989,814.72x = 733,658,516,248.90
5. Step 5: Solve for x
   x = 733,658,516,248.90/989,814.72
6. Step 6: Final answer
   x = 741,207.93