Finding the Fourth Proportional to 1,152,540.24, 1,727,410.58 and 815,679.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,540.24 : 1,727,410.58 = 815,679.34 : x
2. Step 2: Convert to fraction form
   1,152,540.24/1,727,410.58 = 815,679.34/x
3. Step 3: Cross multiply
   1,152,540.24x = 1,727,410.58 × 815,679.34
4. Step 4: Simplify right side
   1,152,540.24x = 1,409,013,121,803.42
5. Step 5: Solve for x
   x = 1,409,013,121,803.42/1,152,540.24
6. Step 6: Final answer
   x = 1,222,528.35