Finding the Fourth Proportional to 1,343.97, 1,854.52 and 784.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.97 : 1,854.52 = 784.37 : x
2. Step 2: Convert to fraction form
   1,343.97/1,854.52 = 784.37/x
3. Step 3: Cross multiply
   1,343.97x = 1,854.52 × 784.37
4. Step 4: Simplify right side
   1,343.97x = 1,454,632.53
5. Step 5: Solve for x
   x = 1,454,632.53/1,343.97
6. Step 6: Final answer
   x = 1,082.34