Finding the Fourth Proportional to 1,015,644.72, 1,400,861.88 and 671,081.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,644.72 : 1,400,861.88 = 671,081.52 : x
2. Step 2: Convert to fraction form
   1,015,644.72/1,400,861.88 = 671,081.52/x
3. Step 3: Cross multiply
   1,015,644.72x = 1,400,861.88 × 671,081.52
4. Step 4: Simplify right side
   1,015,644.72x = 940,092,519,740.46
5. Step 5: Solve for x
   x = 940,092,519,740.46/1,015,644.72
6. Step 6: Final answer
   x = 925,611.59