Finding the Fourth Proportional to 2,470.47, 3,409.34 and 1,631.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,470.47 : 3,409.34 = 1,631.91 : x
2. Step 2: Convert to fraction form
   2,470.47/3,409.34 = 1,631.91/x
3. Step 3: Cross multiply
   2,470.47x = 3,409.34 × 1,631.91
4. Step 4: Simplify right side
   2,470.47x = 5,563,727.88
5. Step 5: Solve for x
   x = 5,563,727.88/2,470.47
6. Step 6: Final answer
   x = 2,252.09