Finding the Fourth Proportional to 1,338.16, 1,846.23 and 807.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.16 : 1,846.23 = 807.22 : x
2. Step 2: Convert to fraction form
   1,338.16/1,846.23 = 807.22/x
3. Step 3: Cross multiply
   1,338.16x = 1,846.23 × 807.22
4. Step 4: Simplify right side
   1,338.16x = 1,490,313.78
5. Step 5: Solve for x
   x = 1,490,313.78/1,338.16
6. Step 6: Final answer
   x = 1,113.70