Finding the Fourth Proportional to 5,590.89, 8,384.04 and 2,081.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,590.89 : 8,384.04 = 2,081.12 : x
2. Step 2: Convert to fraction form
   5,590.89/8,384.04 = 2,081.12/x
3. Step 3: Cross multiply
   5,590.89x = 8,384.04 × 2,081.12
4. Step 4: Simplify right side
   5,590.89x = 17,448,151.40
5. Step 5: Solve for x
   x = 17,448,151.40/5,590.89
6. Step 6: Final answer
   x = 3,120.82