Finding the Fourth Proportional to 1,856.64, 2,795.89 and 1,340.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.64 : 2,795.89 = 1,340.28 : x
2. Step 2: Convert to fraction form
   1,856.64/2,795.89 = 1,340.28/x
3. Step 3: Cross multiply
   1,856.64x = 2,795.89 × 1,340.28
4. Step 4: Simplify right side
   1,856.64x = 3,747,275.45
5. Step 5: Solve for x
   x = 3,747,275.45/1,856.64
6. Step 6: Final answer
   x = 2,018.31