Finding the Fourth Proportional to 2,402.79, 3,315.98 and 1,340.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.79 : 3,315.98 = 1,340.58 : x
2. Step 2: Convert to fraction form
   2,402.79/3,315.98 = 1,340.58/x
3. Step 3: Cross multiply
   2,402.79x = 3,315.98 × 1,340.58
4. Step 4: Simplify right side
   2,402.79x = 4,445,329.77
5. Step 5: Solve for x
   x = 4,445,329.77/2,402.79
6. Step 6: Final answer
   x = 1,850.07