Finding the Fourth Proportional to 1,573.50, 2,171.43 and 875.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,573.50 : 2,171.43 = 875.01 : x
2. Step 2: Convert to fraction form
   1,573.50/2,171.43 = 875.01/x
3. Step 3: Cross multiply
   1,573.50x = 2,171.43 × 875.01
4. Step 4: Simplify right side
   1,573.50x = 1,900,022.96
5. Step 5: Solve for x
   x = 1,900,022.96/1,573.50
6. Step 6: Final answer
   x = 1,207.51