Finding the Fourth Proportional to 2,402.51, 3,315.51 and 1,340.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.51 : 3,315.51 = 1,340.30 : x
2. Step 2: Convert to fraction form
   2,402.51/3,315.51 = 1,340.30/x
3. Step 3: Cross multiply
   2,402.51x = 3,315.51 × 1,340.30
4. Step 4: Simplify right side
   2,402.51x = 4,443,763.92
5. Step 5: Solve for x
   x = 4,443,763.92/2,402.51
6. Step 6: Final answer
   x = 1,849.63