Finding the Fourth Proportional to 1,357.23, 1,871.71 and 1,061.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357.23 : 1,871.71 = 1,061.98 : x
2. Step 2: Convert to fraction form
   1,357.23/1,871.71 = 1,061.98/x
3. Step 3: Cross multiply
   1,357.23x = 1,871.71 × 1,061.98
4. Step 4: Simplify right side
   1,357.23x = 1,987,718.59
5. Step 5: Solve for x
   x = 1,987,718.59/1,357.23
6. Step 6: Final answer
   x = 1,464.54