Finding the Fourth Proportional to 1,499.86, 2,249.82 and 634.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.86 : 2,249.82 = 634.78 : x
2. Step 2: Convert to fraction form
   1,499.86/2,249.82 = 634.78/x
3. Step 3: Cross multiply
   1,499.86x = 2,249.82 × 634.78
4. Step 4: Simplify right side
   1,499.86x = 1,428,140.74
5. Step 5: Solve for x
   x = 1,428,140.74/1,499.86
6. Step 6: Final answer
   x = 952.18