Finding the Fourth Proportional to 2,624.84, 3,598.78 and 2,578.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.84 : 3,598.78 = 2,578.04 : x
2. Step 2: Convert to fraction form
   2,624.84/3,598.78 = 2,578.04/x
3. Step 3: Cross multiply
   2,624.84x = 3,598.78 × 2,578.04
4. Step 4: Simplify right side
   2,624.84x = 9,277,798.79
5. Step 5: Solve for x
   x = 9,277,798.79/2,624.84
6. Step 6: Final answer
   x = 3,534.61