Finding the Fourth Proportional to 1,588.38, 2,383.38 and 722.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,588.38 : 2,383.38 = 722.58 : x
2. Step 2: Convert to fraction form
   1,588.38/2,383.38 = 722.58/x
3. Step 3: Cross multiply
   1,588.38x = 2,383.38 × 722.58
4. Step 4: Simplify right side
   1,588.38x = 1,722,182.72
5. Step 5: Solve for x
   x = 1,722,182.72/1,588.38
6. Step 6: Final answer
   x = 1,084.24