Finding the Fourth Proportional to 2,607.84, 3,909.33 and 875.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.84 : 3,909.33 = 875.25 : x
2. Step 2: Convert to fraction form
   2,607.84/3,909.33 = 875.25/x
3. Step 3: Cross multiply
   2,607.84x = 3,909.33 × 875.25
4. Step 4: Simplify right side
   2,607.84x = 3,421,641.08
5. Step 5: Solve for x
   x = 3,421,641.08/2,607.84
6. Step 6: Final answer
   x = 1,312.06