Finding the Fourth Proportional to 1,343.66, 1,854.30 and 784.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.66 : 1,854.30 = 784.04 : x
2. Step 2: Convert to fraction form
   1,343.66/1,854.30 = 784.04/x
3. Step 3: Cross multiply
   1,343.66x = 1,854.30 × 784.04
4. Step 4: Simplify right side
   1,343.66x = 1,453,845.37
5. Step 5: Solve for x
   x = 1,453,845.37/1,343.66
6. Step 6: Final answer
   x = 1,082.00