Finding the Fourth Proportional to 1,061,228.80, 1,461,706.18 and 815,743.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061,228.80 : 1,461,706.18 = 815,743.99 : x
2. Step 2: Convert to fraction form
   1,061,228.80/1,461,706.18 = 815,743.99/x
3. Step 3: Cross multiply
   1,061,228.80x = 1,461,706.18 × 815,743.99
4. Step 4: Simplify right side
   1,061,228.80x = 1,192,378,031,480.86
5. Step 5: Solve for x
   x = 1,192,378,031,480.86/1,061,228.80
6. Step 6: Final answer
   x = 1,123,582.43