Finding the Fourth Proportional to 1,343.83, 1,854.61 and 784.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.83 : 1,854.61 = 784.19 : x
2. Step 2: Convert to fraction form
   1,343.83/1,854.61 = 784.19/x
3. Step 3: Cross multiply
   1,343.83x = 1,854.61 × 784.19
4. Step 4: Simplify right side
   1,343.83x = 1,454,366.62
5. Step 5: Solve for x
   x = 1,454,366.62/1,343.83
6. Step 6: Final answer
   x = 1,082.25