Finding the Fourth Proportional to 1,116.88, 1,673.38 and 538.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.88 : 1,673.38 = 538.52 : x
2. Step 2: Convert to fraction form
   1,116.88/1,673.38 = 538.52/x
3. Step 3: Cross multiply
   1,116.88x = 1,673.38 × 538.52
4. Step 4: Simplify right side
   1,116.88x = 901,148.60
5. Step 5: Solve for x
   x = 901,148.60/1,116.88
6. Step 6: Final answer
   x = 806.84