Finding the Fourth Proportional to 1,525.11, 2,101.57 and 1,104.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,525.11 : 2,101.57 = 1,104.72 : x
2. Step 2: Convert to fraction form
   1,525.11/2,101.57 = 1,104.72/x
3. Step 3: Cross multiply
   1,525.11x = 2,101.57 × 1,104.72
4. Step 4: Simplify right side
   1,525.11x = 2,321,646.41
5. Step 5: Solve for x
   x = 2,321,646.41/1,525.11
6. Step 6: Final answer
   x = 1,522.28