Finding the Fourth Proportional to 1,602.59, 2,404.60 and 871.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,602.59 : 2,404.60 = 871.07 : x
2. Step 2: Convert to fraction form
   1,602.59/2,404.60 = 871.07/x
3. Step 3: Cross multiply
   1,602.59x = 2,404.60 × 871.07
4. Step 4: Simplify right side
   1,602.59x = 2,094,560.72
5. Step 5: Solve for x
   x = 2,094,560.72/1,602.59
6. Step 6: Final answer
   x = 1,306.99