Finding the Fourth Proportional to 2,391.33, 3,588.35 and 930.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.33 : 3,588.35 = 930.30 : x
2. Step 2: Convert to fraction form
   2,391.33/3,588.35 = 930.30/x
3. Step 3: Cross multiply
   2,391.33x = 3,588.35 × 930.30
4. Step 4: Simplify right side
   2,391.33x = 3,338,242.01
5. Step 5: Solve for x
   x = 3,338,242.01/2,391.33
6. Step 6: Final answer
   x = 1,395.98