Finding the Fourth Proportional to 2,385.05, 3,291.84 and 1,337.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.05 : 3,291.84 = 1,337.31 : x
2. Step 2: Convert to fraction form
   2,385.05/3,291.84 = 1,337.31/x
3. Step 3: Cross multiply
   2,385.05x = 3,291.84 × 1,337.31
4. Step 4: Simplify right side
   2,385.05x = 4,402,210.55
5. Step 5: Solve for x
   x = 4,402,210.55/2,385.05
6. Step 6: Final answer
   x = 1,845.76