Finding the Fourth Proportional to 2,758.02, 3,810.59 and 2,172.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.02 : 3,810.59 = 2,172.99 : x
2. Step 2: Convert to fraction form
   2,758.02/3,810.59 = 2,172.99/x
3. Step 3: Cross multiply
   2,758.02x = 3,810.59 × 2,172.99
4. Step 4: Simplify right side
   2,758.02x = 8,280,363.10
5. Step 5: Solve for x
   x = 8,280,363.10/2,758.02
6. Step 6: Final answer
   x = 3,002.29