Finding the Fourth Proportional to 1,105.32, 1,525.30 and 626.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.32 : 1,525.30 = 626.74 : x
2. Step 2: Convert to fraction form
   1,105.32/1,525.30 = 626.74/x
3. Step 3: Cross multiply
   1,105.32x = 1,525.30 × 626.74
4. Step 4: Simplify right side
   1,105.32x = 955,966.52
5. Step 5: Solve for x
   x = 955,966.52/1,105.32
6. Step 6: Final answer
   x = 864.88