Finding the Fourth Proportional to 1,501.24, 2,071.74 and 871.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.24 : 2,071.74 = 871.74 : x
2. Step 2: Convert to fraction form
   1,501.24/2,071.74 = 871.74/x
3. Step 3: Cross multiply
   1,501.24x = 2,071.74 × 871.74
4. Step 4: Simplify right side
   1,501.24x = 1,806,018.63
5. Step 5: Solve for x
   x = 1,806,018.63/1,501.24
6. Step 6: Final answer
   x = 1,203.02