Finding the Fourth Proportional to 3,116.48, 4,300.67 and 1,790.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,116.48 : 4,300.67 = 1,790.15 : x
2. Step 2: Convert to fraction form
   3,116.48/4,300.67 = 1,790.15/x
3. Step 3: Cross multiply
   3,116.48x = 4,300.67 × 1,790.15
4. Step 4: Simplify right side
   3,116.48x = 7,698,827.37
5. Step 5: Solve for x
   x = 7,698,827.37/3,116.48
6. Step 6: Final answer
   x = 2,470.36