Finding the Fourth Proportional to 2,385.40, 3,291.82 and 1,337.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.40 : 3,291.82 = 1,337.56 : x
2. Step 2: Convert to fraction form
   2,385.40/3,291.82 = 1,337.56/x
3. Step 3: Cross multiply
   2,385.40x = 3,291.82 × 1,337.56
4. Step 4: Simplify right side
   2,385.40x = 4,403,006.76
5. Step 5: Solve for x
   x = 4,403,006.76/2,385.40
6. Step 6: Final answer
   x = 1,845.81