Finding the Fourth Proportional to 3,720.84, 5,582.52 and 2,335.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,720.84 : 5,582.52 = 2,335.20 : x
2. Step 2: Convert to fraction form
   3,720.84/5,582.52 = 2,335.20/x
3. Step 3: Cross multiply
   3,720.84x = 5,582.52 × 2,335.20
4. Step 4: Simplify right side
   3,720.84x = 13,036,300.70
5. Step 5: Solve for x
   x = 13,036,300.70/3,720.84
6. Step 6: Final answer
   x = 3,503.59