Finding the Fourth Proportional to 2,380.07, 3,284.43 and 1,317.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.07 : 3,284.43 = 1,317.88 : x
2. Step 2: Convert to fraction form
   2,380.07/3,284.43 = 1,317.88/x
3. Step 3: Cross multiply
   2,380.07x = 3,284.43 × 1,317.88
4. Step 4: Simplify right side
   2,380.07x = 4,328,484.61
5. Step 5: Solve for x
   x = 4,328,484.61/2,380.07
6. Step 6: Final answer
   x = 1,818.64