Finding the Fourth Proportional to 1,959.18, 2,938.72 and 498.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,959.18 : 2,938.72 = 498.32 : x
2. Step 2: Convert to fraction form
   1,959.18/2,938.72 = 498.32/x
3. Step 3: Cross multiply
   1,959.18x = 2,938.72 × 498.32
4. Step 4: Simplify right side
   1,959.18x = 1,464,422.95
5. Step 5: Solve for x
   x = 1,464,422.95/1,959.18
6. Step 6: Final answer
   x = 747.47