Finding the Fourth Proportional to 1,856.02, 2,559.90 and 1,297.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.02 : 2,559.90 = 1,297.48 : x
2. Step 2: Convert to fraction form
   1,856.02/2,559.90 = 1,297.48/x
3. Step 3: Cross multiply
   1,856.02x = 2,559.90 × 1,297.48
4. Step 4: Simplify right side
   1,856.02x = 3,321,419.05
5. Step 5: Solve for x
   x = 3,321,419.05/1,856.02
6. Step 6: Final answer
   x = 1,789.54