Finding the Fourth Proportional to 2,421.59, 3,320.03 and 2,377.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,421.59 : 3,320.03 = 2,377.85 : x
2. Step 2: Convert to fraction form
   2,421.59/3,320.03 = 2,377.85/x
3. Step 3: Cross multiply
   2,421.59x = 3,320.03 × 2,377.85
4. Step 4: Simplify right side
   2,421.59x = 7,894,547.58
5. Step 5: Solve for x
   x = 7,894,547.58/2,421.59
6. Step 6: Final answer
   x = 3,260.06