Finding the Fourth Proportional to 4,705.61, 7,052.71 and 2,623.40

Step by Step Solution

1. Step 1: Write the proportion equation
   4,705.61 : 7,052.71 = 2,623.40 : x
2. Step 2: Convert to fraction form
   4,705.61/7,052.71 = 2,623.40/x
3. Step 3: Cross multiply
   4,705.61x = 7,052.71 × 2,623.40
4. Step 4: Simplify right side
   4,705.61x = 18,502,061.78
5. Step 5: Solve for x
   x = 18,502,061.78/4,705.61
6. Step 6: Final answer
   x = 3,931.92