Finding the Fourth Proportional to 1,337.12, 1,846.02 and 840.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.12 : 1,846.02 = 840.18 : x
2. Step 2: Convert to fraction form
   1,337.12/1,846.02 = 840.18/x
3. Step 3: Cross multiply
   1,337.12x = 1,846.02 × 840.18
4. Step 4: Simplify right side
   1,337.12x = 1,550,989.08
5. Step 5: Solve for x
   x = 1,550,989.08/1,337.12
6. Step 6: Final answer
   x = 1,159.95