Finding the Fourth Proportional to 1,338.50, 1,847.15 and 807.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.50 : 1,847.15 = 807.41 : x
2. Step 2: Convert to fraction form
   1,338.50/1,847.15 = 807.41/x
3. Step 3: Cross multiply
   1,338.50x = 1,847.15 × 807.41
4. Step 4: Simplify right side
   1,338.50x = 1,491,394.11
5. Step 5: Solve for x
   x = 1,491,394.11/1,338.50
6. Step 6: Final answer
   x = 1,114.23