Finding the Fourth Proportional to 1,498.28, 2,248.60 and 1,039.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.28 : 2,248.60 = 1,039.29 : x
2. Step 2: Convert to fraction form
   1,498.28/2,248.60 = 1,039.29/x
3. Step 3: Cross multiply
   1,498.28x = 2,248.60 × 1,039.29
4. Step 4: Simplify right side
   1,498.28x = 2,336,953.98
5. Step 5: Solve for x
   x = 2,336,953.98/1,498.28
6. Step 6: Final answer
   x = 1,559.75