Finding the Fourth Proportional to 4,707.86, 7,061.76 and 1,787.29

Step by Step Solution

1. Step 1: Write the proportion equation
   4,707.86 : 7,061.76 = 1,787.29 : x
2. Step 2: Convert to fraction form
   4,707.86/7,061.76 = 1,787.29/x
3. Step 3: Cross multiply
   4,707.86x = 7,061.76 × 1,787.29
4. Step 4: Simplify right side
   4,707.86x = 12,621,395.38
5. Step 5: Solve for x
   x = 12,621,395.38/4,707.86
6. Step 6: Final answer
   x = 2,680.92