Finding the Fourth Proportional to 1,248,967.50, 1,723,152.24 and 813,185.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248,967.50 : 1,723,152.24 = 813,185.88 : x
2. Step 2: Convert to fraction form
   1,248,967.50/1,723,152.24 = 813,185.88/x
3. Step 3: Cross multiply
   1,248,967.50x = 1,723,152.24 × 813,185.88
4. Step 4: Simplify right side
   1,248,967.50x = 1,401,243,070,658.37
5. Step 5: Solve for x
   x = 1,401,243,070,658.37/1,248,967.50
6. Step 6: Final answer
   x = 1,121,921.16