Finding the Fourth Proportional to 1,342.74, 1,852.53 and 871.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.74 : 1,852.53 = 871.01 : x
2. Step 2: Convert to fraction form
   1,342.74/1,852.53 = 871.01/x
3. Step 3: Cross multiply
   1,342.74x = 1,852.53 × 871.01
4. Step 4: Simplify right side
   1,342.74x = 1,613,562.89
5. Step 5: Solve for x
   x = 1,613,562.89/1,342.74
6. Step 6: Final answer
   x = 1,201.69