Finding the Fourth Proportional to 1,283.93, 1,771.72 and 752.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,283.93 : 1,771.72 = 752.79 : x
2. Step 2: Convert to fraction form
   1,283.93/1,771.72 = 752.79/x
3. Step 3: Cross multiply
   1,283.93x = 1,771.72 × 752.79
4. Step 4: Simplify right side
   1,283.93x = 1,333,733.10
5. Step 5: Solve for x
   x = 1,333,733.10/1,283.93
6. Step 6: Final answer
   x = 1,038.79