Finding the Fourth Proportional to 2,580.41, 3,870.61 and 632.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.41 : 3,870.61 = 632.59 : x
2. Step 2: Convert to fraction form
   2,580.41/3,870.61 = 632.59/x
3. Step 3: Cross multiply
   2,580.41x = 3,870.61 × 632.59
4. Step 4: Simplify right side
   2,580.41x = 2,448,509.18
5. Step 5: Solve for x
   x = 2,448,509.18/2,580.41
6. Step 6: Final answer
   x = 948.88