Finding the Fourth Proportional to 1,104.57, 1,656.86 and 525.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.57 : 1,656.86 = 525.69 : x
2. Step 2: Convert to fraction form
   1,104.57/1,656.86 = 525.69/x
3. Step 3: Cross multiply
   1,104.57x = 1,656.86 × 525.69
4. Step 4: Simplify right side
   1,104.57x = 870,992.10
5. Step 5: Solve for x
   x = 870,992.10/1,104.57
6. Step 6: Final answer
   x = 788.54