Finding the Fourth Proportional to 1,566,144.72, 2,160,765.72 and 877,716

Step by Step Solution

1. Step 1: Write the proportion equation
   1,566,144.72 : 2,160,765.72 = 877,716 : x
2. Step 2: Convert to fraction form
   1,566,144.72/2,160,765.72 = 877,716/x
3. Step 3: Cross multiply
   1,566,144.72x = 2,160,765.72 × 877,716
4. Step 4: Simplify right side
   1,566,144.72x = 1,896,538,644,695.52
5. Step 5: Solve for x
   x = 1,896,538,644,695.52/1,566,144.72
6. Step 6: Final answer
   x = 1,210,960.02