Finding the Fourth Proportional to 1,291.74, 1,783.52 and 794.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291.74 : 1,783.52 = 794.53 : x
2. Step 2: Convert to fraction form
   1,291.74/1,783.52 = 794.53/x
3. Step 3: Cross multiply
   1,291.74x = 1,783.52 × 794.53
4. Step 4: Simplify right side
   1,291.74x = 1,417,060.15
5. Step 5: Solve for x
   x = 1,417,060.15/1,291.74
6. Step 6: Final answer
   x = 1,097.02