Finding the Fourth Proportional to 1,575.52, 2,174.22 and 876.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,575.52 : 2,174.22 = 876.88 : x
2. Step 2: Convert to fraction form
   1,575.52/2,174.22 = 876.88/x
3. Step 3: Cross multiply
   1,575.52x = 2,174.22 × 876.88
4. Step 4: Simplify right side
   1,575.52x = 1,906,530.03
5. Step 5: Solve for x
   x = 1,906,530.03/1,575.52
6. Step 6: Final answer
   x = 1,210.10