Finding the Fourth Proportional to 2,174.58, 3,259.71 and 875.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,174.58 : 3,259.71 = 875.07 : x
2. Step 2: Convert to fraction form
   2,174.58/3,259.71 = 875.07/x
3. Step 3: Cross multiply
   2,174.58x = 3,259.71 × 875.07
4. Step 4: Simplify right side
   2,174.58x = 2,852,474.43
5. Step 5: Solve for x
   x = 2,852,474.43/2,174.58
6. Step 6: Final answer
   x = 1,311.74