Finding the Fourth Proportional to 1,358.62, 1,874.71 and 798.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.62 : 1,874.71 = 798.75 : x
2. Step 2: Convert to fraction form
   1,358.62/1,874.71 = 798.75/x
3. Step 3: Cross multiply
   1,358.62x = 1,874.71 × 798.75
4. Step 4: Simplify right side
   1,358.62x = 1,497,424.61
5. Step 5: Solve for x
   x = 1,497,424.61/1,358.62
6. Step 6: Final answer
   x = 1,102.17