Finding the Fourth Proportional to 1,678.05, 2,315.93 and 1,014.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678.05 : 2,315.93 = 1,014.91 : x
2. Step 2: Convert to fraction form
   1,678.05/2,315.93 = 1,014.91/x
3. Step 3: Cross multiply
   1,678.05x = 2,315.93 × 1,014.91
4. Step 4: Simplify right side
   1,678.05x = 2,350,443.86
5. Step 5: Solve for x
   x = 2,350,443.86/1,678.05
6. Step 6: Final answer
   x = 1,400.70