Finding the Fourth Proportional to 1,343.93, 1,854.56 and 784.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.93 : 1,854.56 = 784.42 : x
2. Step 2: Convert to fraction form
   1,343.93/1,854.56 = 784.42/x
3. Step 3: Cross multiply
   1,343.93x = 1,854.56 × 784.42
4. Step 4: Simplify right side
   1,343.93x = 1,454,751.28
5. Step 5: Solve for x
   x = 1,454,751.28/1,343.93
6. Step 6: Final answer
   x = 1,082.46