Finding the Fourth Proportional to 1,099,475.30, 1,648,982.55 and 538,912.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099,475.30 : 1,648,982.55 = 538,912.10 : x
2. Step 2: Convert to fraction form
   1,099,475.30/1,648,982.55 = 538,912.10/x
3. Step 3: Cross multiply
   1,099,475.30x = 1,648,982.55 × 538,912.10
4. Step 4: Simplify right side
   1,099,475.30x = 888,656,648,883.86
5. Step 5: Solve for x
   x = 888,656,648,883.86/1,099,475.30
6. Step 6: Final answer
   x = 808,255.22