Finding the Fourth Proportional to 1,094.72, 1,508.62 and 783.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.72 : 1,508.62 = 783.68 : x
2. Step 2: Convert to fraction form
   1,094.72/1,508.62 = 783.68/x
3. Step 3: Cross multiply
   1,094.72x = 1,508.62 × 783.68
4. Step 4: Simplify right side
   1,094.72x = 1,182,275.32
5. Step 5: Solve for x
   x = 1,182,275.32/1,094.72
6. Step 6: Final answer
   x = 1,079.98