Finding the Fourth Proportional to 1,646.78, 2,268.69 and 1,353.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,646.78 : 2,268.69 = 1,353.74 : x
2. Step 2: Convert to fraction form
   1,646.78/2,268.69 = 1,353.74/x
3. Step 3: Cross multiply
   1,646.78x = 2,268.69 × 1,353.74
4. Step 4: Simplify right side
   1,646.78x = 3,071,216.40
5. Step 5: Solve for x
   x = 3,071,216.40/1,646.78
6. Step 6: Final answer
   x = 1,864.98