Finding the Fourth Proportional to 1,507.88, 2,256.15 and 1,046.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.88 : 2,256.15 = 1,046.55 : x
2. Step 2: Convert to fraction form
   1,507.88/2,256.15 = 1,046.55/x
3. Step 3: Cross multiply
   1,507.88x = 2,256.15 × 1,046.55
4. Step 4: Simplify right side
   1,507.88x = 2,361,186.17
5. Step 5: Solve for x
   x = 2,361,186.17/1,507.88
6. Step 6: Final answer
   x = 1,565.90