Finding the Fourth Proportional to 2,402.32, 3,315.24 and 1,354.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.32 : 3,315.24 = 1,354.40 : x
2. Step 2: Convert to fraction form
   2,402.32/3,315.24 = 1,354.40/x
3. Step 3: Cross multiply
   2,402.32x = 3,315.24 × 1,354.40
4. Step 4: Simplify right side
   2,402.32x = 4,490,161.06
5. Step 5: Solve for x
   x = 4,490,161.06/2,402.32
6. Step 6: Final answer
   x = 1,869.09