Finding the Fourth Proportional to 1,499.72, 2,249.62 and 525.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.72 : 2,249.62 = 525.88 : x
2. Step 2: Convert to fraction form
   1,499.72/2,249.62 = 525.88/x
3. Step 3: Cross multiply
   1,499.72x = 2,249.62 × 525.88
4. Step 4: Simplify right side
   1,499.72x = 1,183,030.17
5. Step 5: Solve for x
   x = 1,183,030.17/1,499.72
6. Step 6: Final answer
   x = 788.83