Finding the Fourth Proportional to 3,116.37, 4,300.55 and 1,790.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,116.37 : 4,300.55 = 1,790.49 : x
2. Step 2: Convert to fraction form
   3,116.37/4,300.55 = 1,790.49/x
3. Step 3: Cross multiply
   3,116.37x = 4,300.55 × 1,790.49
4. Step 4: Simplify right side
   3,116.37x = 7,700,091.77
5. Step 5: Solve for x
   x = 7,700,091.77/3,116.37
6. Step 6: Final answer
   x = 2,470.85