Finding the Fourth Proportional to 2,319.61, 3,200.56 and 1,375.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,319.61 : 3,200.56 = 1,375.71 : x
2. Step 2: Convert to fraction form
   2,319.61/3,200.56 = 1,375.71/x
3. Step 3: Cross multiply
   2,319.61x = 3,200.56 × 1,375.71
4. Step 4: Simplify right side
   2,319.61x = 4,403,042.40
5. Step 5: Solve for x
   x = 4,403,042.40/2,319.61
6. Step 6: Final answer
   x = 1,898.18