Finding the Fourth Proportional to 1,109,147.10, 1,663,064.55 and 577,706.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109,147.10 : 1,663,064.55 = 577,706.10 : x
2. Step 2: Convert to fraction form
   1,109,147.10/1,663,064.55 = 577,706.10/x
3. Step 3: Cross multiply
   1,109,147.10x = 1,663,064.55 × 577,706.10
4. Step 4: Simplify right side
   1,109,147.10x = 960,762,535,228.76
5. Step 5: Solve for x
   x = 960,762,535,228.76/1,109,147.10
6. Step 6: Final answer
   x = 866,217.42