Finding the Fourth Proportional to 1,047.59, 1,568.74 and 773.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.59 : 1,568.74 = 773.89 : x
2. Step 2: Convert to fraction form
   1,047.59/1,568.74 = 773.89/x
3. Step 3: Cross multiply
   1,047.59x = 1,568.74 × 773.89
4. Step 4: Simplify right side
   1,047.59x = 1,214,032.20
5. Step 5: Solve for x
   x = 1,214,032.20/1,047.59
6. Step 6: Final answer
   x = 1,158.88