Finding the Fourth Proportional to 1,343.94, 1,854.46 and 784.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.94 : 1,854.46 = 784.38 : x
2. Step 2: Convert to fraction form
   1,343.94/1,854.46 = 784.38/x
3. Step 3: Cross multiply
   1,343.94x = 1,854.46 × 784.38
4. Step 4: Simplify right side
   1,343.94x = 1,454,601.33
5. Step 5: Solve for x
   x = 1,454,601.33/1,343.94
6. Step 6: Final answer
   x = 1,082.34