Finding the Fourth Proportional to 1,339.32, 1,847.37 and 807.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.32 : 1,847.37 = 807.85 : x
2. Step 2: Convert to fraction form
   1,339.32/1,847.37 = 807.85/x
3. Step 3: Cross multiply
   1,339.32x = 1,847.37 × 807.85
4. Step 4: Simplify right side
   1,339.32x = 1,492,393.24
5. Step 5: Solve for x
   x = 1,492,393.24/1,339.32
6. Step 6: Final answer
   x = 1,114.29