Finding the Fourth Proportional to 2,433.72, 3,358.71 and 1,385.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,433.72 : 3,358.71 = 1,385.76 : x
2. Step 2: Convert to fraction form
   2,433.72/3,358.71 = 1,385.76/x
3. Step 3: Cross multiply
   2,433.72x = 3,358.71 × 1,385.76
4. Step 4: Simplify right side
   2,433.72x = 4,654,365.97
5. Step 5: Solve for x
   x = 4,654,365.97/2,433.72
6. Step 6: Final answer
   x = 1,912.45