Finding the Fourth Proportional to 1,256.06, 1,733.38 and 784.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256.06 : 1,733.38 = 784.15 : x
2. Step 2: Convert to fraction form
   1,256.06/1,733.38 = 784.15/x
3. Step 3: Cross multiply
   1,256.06x = 1,733.38 × 784.15
4. Step 4: Simplify right side
   1,256.06x = 1,359,229.93
5. Step 5: Solve for x
   x = 1,359,229.93/1,256.06
6. Step 6: Final answer
   x = 1,082.14