Finding the Fourth Proportional to 1,337.25, 1,997.76 and 1,118.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.25 : 1,997.76 = 1,118.55 : x
2. Step 2: Convert to fraction form
   1,337.25/1,997.76 = 1,118.55/x
3. Step 3: Cross multiply
   1,337.25x = 1,997.76 × 1,118.55
4. Step 4: Simplify right side
   1,337.25x = 2,234,594.45
5. Step 5: Solve for x
   x = 2,234,594.45/1,337.25
6. Step 6: Final answer
   x = 1,671.04