Finding the Fourth Proportional to 2,402.64, 3,315.84 and 1,354.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.64 : 3,315.84 = 1,354.89 : x
2. Step 2: Convert to fraction form
   2,402.64/3,315.84 = 1,354.89/x
3. Step 3: Cross multiply
   2,402.64x = 3,315.84 × 1,354.89
4. Step 4: Simplify right side
   2,402.64x = 4,492,598.46
5. Step 5: Solve for x
   x = 4,492,598.46/2,402.64
6. Step 6: Final answer
   x = 1,869.86