Finding the Fourth Proportional to 2,885.63, 3,983.31 and 1,766.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885.63 : 3,983.31 = 1,766.88 : x
2. Step 2: Convert to fraction form
   2,885.63/3,983.31 = 1,766.88/x
3. Step 3: Cross multiply
   2,885.63x = 3,983.31 × 1,766.88
4. Step 4: Simplify right side
   2,885.63x = 7,038,030.77
5. Step 5: Solve for x
   x = 7,038,030.77/2,885.63
6. Step 6: Final answer
   x = 2,439.00