Finding the Fourth Proportional to 1,731.42, 2,387.88 and 1,353.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,731.42 : 2,387.88 = 1,353.42 : x
2. Step 2: Convert to fraction form
   1,731.42/2,387.88 = 1,353.42/x
3. Step 3: Cross multiply
   1,731.42x = 2,387.88 × 1,353.42
4. Step 4: Simplify right side
   1,731.42x = 3,231,804.55
5. Step 5: Solve for x
   x = 3,231,804.55/1,731.42
6. Step 6: Final answer
   x = 1,866.56