Finding the Fourth Proportional to 1,449.83, 2,174.22 and 525.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,449.83 : 2,174.22 = 525.15 : x
2. Step 2: Convert to fraction form
   1,449.83/2,174.22 = 525.15/x
3. Step 3: Cross multiply
   1,449.83x = 2,174.22 × 525.15
4. Step 4: Simplify right side
   1,449.83x = 1,141,780.76
5. Step 5: Solve for x
   x = 1,141,780.76/1,449.83
6. Step 6: Final answer
   x = 787.53