Finding the Fourth Proportional to 3,380.72, 4,665.59 and 1,888.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,380.72 : 4,665.59 = 1,888.74 : x
2. Step 2: Convert to fraction form
   3,380.72/4,665.59 = 1,888.74/x
3. Step 3: Cross multiply
   3,380.72x = 4,665.59 × 1,888.74
4. Step 4: Simplify right side
   3,380.72x = 8,812,091.18
5. Step 5: Solve for x
   x = 8,812,091.18/3,380.72
6. Step 6: Final answer
   x = 2,606.58