Finding the Fourth Proportional to 1,111.65, 1,664.03 and 590.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.65 : 1,664.03 = 590.37 : x
2. Step 2: Convert to fraction form
   1,111.65/1,664.03 = 590.37/x
3. Step 3: Cross multiply
   1,111.65x = 1,664.03 × 590.37
4. Step 4: Simplify right side
   1,111.65x = 982,393.39
5. Step 5: Solve for x
   x = 982,393.39/1,111.65
6. Step 6: Final answer
   x = 883.73