Finding the Fourth Proportional to 989,103.15, 1,365,019.92 and 553,516.83

Step by Step Solution

1. Step 1: Write the proportion equation
   989,103.15 : 1,365,019.92 = 553,516.83 : x
2. Step 2: Convert to fraction form
   989,103.15/1,365,019.92 = 553,516.83/x
3. Step 3: Cross multiply
   989,103.15x = 1,365,019.92 × 553,516.83
4. Step 4: Simplify right side
   989,103.15x = 755,561,499,005.25
5. Step 5: Solve for x
   x = 755,561,499,005.25/989,103.15
6. Step 6: Final answer
   x = 763,885.44