Finding the Fourth Proportional to 8,470.46, 12,706.52 and 2,923.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,470.46 : 12,706.52 = 2,923.07 : x
2. Step 2: Convert to fraction form
   8,470.46/12,706.52 = 2,923.07/x
3. Step 3: Cross multiply
   8,470.46x = 12,706.52 × 2,923.07
4. Step 4: Simplify right side
   8,470.46x = 37,142,047.42
5. Step 5: Solve for x
   x = 37,142,047.42/8,470.46
6. Step 6: Final answer
   x = 4,384.89