Finding the Fourth Proportional to 1,293.32, 1,940.61 and 552.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,293.32 : 1,940.61 = 552.72 : x
2. Step 2: Convert to fraction form
   1,293.32/1,940.61 = 552.72/x
3. Step 3: Cross multiply
   1,293.32x = 1,940.61 × 552.72
4. Step 4: Simplify right side
   1,293.32x = 1,072,620.20
5. Step 5: Solve for x
   x = 1,072,620.20/1,293.32
6. Step 6: Final answer
   x = 829.36