Finding the Fourth Proportional to 3,946.86, 5,920.61 and 1,314.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,946.86 : 5,920.61 = 1,314.27 : x
2. Step 2: Convert to fraction form
   3,946.86/5,920.61 = 1,314.27/x
3. Step 3: Cross multiply
   3,946.86x = 5,920.61 × 1,314.27
4. Step 4: Simplify right side
   3,946.86x = 7,781,280.10
5. Step 5: Solve for x
   x = 7,781,280.10/3,946.86
6. Step 6: Final answer
   x = 1,971.51