Finding the Fourth Proportional to 2,402.72, 3,315.43 and 1,340.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.72 : 3,315.43 = 1,340.36 : x
2. Step 2: Convert to fraction form
   2,402.72/3,315.43 = 1,340.36/x
3. Step 3: Cross multiply
   2,402.72x = 3,315.43 × 1,340.36
4. Step 4: Simplify right side
   2,402.72x = 4,443,885.94
5. Step 5: Solve for x
   x = 4,443,885.94/2,402.72
6. Step 6: Final answer
   x = 1,849.52