Finding the Fourth Proportional to 1,678.08, 2,314.80 and 1,014.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678.08 : 2,314.80 = 1,014.72 : x
2. Step 2: Convert to fraction form
   1,678.08/2,314.80 = 1,014.72/x
3. Step 3: Cross multiply
   1,678.08x = 2,314.80 × 1,014.72
4. Step 4: Simplify right side
   1,678.08x = 2,348,873.86
5. Step 5: Solve for x
   x = 2,348,873.86/1,678.08
6. Step 6: Final answer
   x = 1,399.74