Finding the Fourth Proportional to 1,111.33, 1,663.38 and 590.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.33 : 1,663.38 = 590.59 : x
2. Step 2: Convert to fraction form
   1,111.33/1,663.38 = 590.59/x
3. Step 3: Cross multiply
   1,111.33x = 1,663.38 × 590.59
4. Step 4: Simplify right side
   1,111.33x = 982,375.59
5. Step 5: Solve for x
   x = 982,375.59/1,111.33
6. Step 6: Final answer
   x = 883.96