Finding the Fourth Proportional to 2,398.76, 3,310.18 and 1,336.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.76 : 3,310.18 = 1,336.47 : x
2. Step 2: Convert to fraction form
   2,398.76/3,310.18 = 1,336.47/x
3. Step 3: Cross multiply
   2,398.76x = 3,310.18 × 1,336.47
4. Step 4: Simplify right side
   2,398.76x = 4,423,940.51
5. Step 5: Solve for x
   x = 4,423,940.51/2,398.76
6. Step 6: Final answer
   x = 1,844.26