Finding the Fourth Proportional to 1,499.39, 2,249.52 and 525.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.39 : 2,249.52 = 525.57 : x
2. Step 2: Convert to fraction form
   1,499.39/2,249.52 = 525.57/x
3. Step 3: Cross multiply
   1,499.39x = 2,249.52 × 525.57
4. Step 4: Simplify right side
   1,499.39x = 1,182,280.23
5. Step 5: Solve for x
   x = 1,182,280.23/1,499.39
6. Step 6: Final answer
   x = 788.51