Finding the Fourth Proportional to 2,376.57, 3,279.61 and 1,314.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,376.57 : 3,279.61 = 1,314.31 : x
2. Step 2: Convert to fraction form
   2,376.57/3,279.61 = 1,314.31/x
3. Step 3: Cross multiply
   2,376.57x = 3,279.61 × 1,314.31
4. Step 4: Simplify right side
   2,376.57x = 4,310,404.54
5. Step 5: Solve for x
   x = 4,310,404.54/2,376.57
6. Step 6: Final answer
   x = 1,813.71