Finding the Fourth Proportional to 2,380.25, 3,284.76 and 1,317.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.25 : 3,284.76 = 1,317.98 : x
2. Step 2: Convert to fraction form
   2,380.25/3,284.76 = 1,317.98/x
3. Step 3: Cross multiply
   2,380.25x = 3,284.76 × 1,317.98
4. Step 4: Simplify right side
   2,380.25x = 4,329,256.20
5. Step 5: Solve for x
   x = 4,329,256.20/2,380.25
6. Step 6: Final answer
   x = 1,818.83