Finding the Fourth Proportional to 1,499.18, 2,248.22 and 511.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.18 : 2,248.22 = 511.86 : x
2. Step 2: Convert to fraction form
   1,499.18/2,248.22 = 511.86/x
3. Step 3: Cross multiply
   1,499.18x = 2,248.22 × 511.86
4. Step 4: Simplify right side
   1,499.18x = 1,150,773.89
5. Step 5: Solve for x
   x = 1,150,773.89/1,499.18
6. Step 6: Final answer
   x = 767.60