Finding the Fourth Proportional to 1,337.16, 1,844.70 and 839.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.16 : 1,844.70 = 839.46 : x
2. Step 2: Convert to fraction form
   1,337.16/1,844.70 = 839.46/x
3. Step 3: Cross multiply
   1,337.16x = 1,844.70 × 839.46
4. Step 4: Simplify right side
   1,337.16x = 1,548,551.86
5. Step 5: Solve for x
   x = 1,548,551.86/1,337.16
6. Step 6: Final answer
   x = 1,158.09