Finding the Fourth Proportional to 2,184.52, 3,014.74 and 1,288.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,184.52 : 3,014.74 = 1,288.76 : x
2. Step 2: Convert to fraction form
   2,184.52/3,014.74 = 1,288.76/x
3. Step 3: Cross multiply
   2,184.52x = 3,014.74 × 1,288.76
4. Step 4: Simplify right side
   2,184.52x = 3,885,276.32
5. Step 5: Solve for x
   x = 3,885,276.32/2,184.52
6. Step 6: Final answer
   x = 1,778.55