Finding the Fourth Proportional to 2,360.30, 3,256.98 and 1,312.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,360.30 : 3,256.98 = 1,312.28 : x
2. Step 2: Convert to fraction form
   2,360.30/3,256.98 = 1,312.28/x
3. Step 3: Cross multiply
   2,360.30x = 3,256.98 × 1,312.28
4. Step 4: Simplify right side
   2,360.30x = 4,274,069.71
5. Step 5: Solve for x
   x = 4,274,069.71/2,360.30
6. Step 6: Final answer
   x = 1,810.82