Finding the Fourth Proportional to 1,111.22, 1,663.33 and 762.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.22 : 1,663.33 = 762.52 : x
2. Step 2: Convert to fraction form
   1,111.22/1,663.33 = 762.52/x
3. Step 3: Cross multiply
   1,111.22x = 1,663.33 × 762.52
4. Step 4: Simplify right side
   1,111.22x = 1,268,314.07
5. Step 5: Solve for x
   x = 1,268,314.07/1,111.22
6. Step 6: Final answer
   x = 1,141.37