Finding the Fourth Proportional to 1,337.52, 1,846.88 and 840.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.52 : 1,846.88 = 840.96 : x
2. Step 2: Convert to fraction form
   1,337.52/1,846.88 = 840.96/x
3. Step 3: Cross multiply
   1,337.52x = 1,846.88 × 840.96
4. Step 4: Simplify right side
   1,337.52x = 1,553,152.20
5. Step 5: Solve for x
   x = 1,553,152.20/1,337.52
6. Step 6: Final answer
   x = 1,161.22