Finding the Fourth Proportional to 1,724.16, 2,378.88 and 1,103.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,724.16 : 2,378.88 = 1,103.52 : x
2. Step 2: Convert to fraction form
   1,724.16/2,378.88 = 1,103.52/x
3. Step 3: Cross multiply
   1,724.16x = 2,378.88 × 1,103.52
4. Step 4: Simplify right side
   1,724.16x = 2,625,141.66
5. Step 5: Solve for x
   x = 2,625,141.66/1,724.16
6. Step 6: Final answer
   x = 1,522.56