Finding the Fourth Proportional to 2,284.10, 3,426.15 and 1,312.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.10 : 3,426.15 = 1,312.10 : x
2. Step 2: Convert to fraction form
   2,284.10/3,426.15 = 1,312.10/x
3. Step 3: Cross multiply
   2,284.10x = 3,426.15 × 1,312.10
4. Step 4: Simplify right side
   2,284.10x = 4,495,434.28
5. Step 5: Solve for x
   x = 4,495,434.28/2,284.10
6. Step 6: Final answer
   x = 1,968.15