Finding the Fourth Proportional to 2,173.89, 3,260.94 and 875.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.89 : 3,260.94 = 875.25 : x
2. Step 2: Convert to fraction form
   2,173.89/3,260.94 = 875.25/x
3. Step 3: Cross multiply
   2,173.89x = 3,260.94 × 875.25
4. Step 4: Simplify right side
   2,173.89x = 2,854,137.74
5. Step 5: Solve for x
   x = 2,854,137.74/2,173.89
6. Step 6: Final answer
   x = 1,312.92