Finding the Fourth Proportional to 2,166.48, 2,989.98 and 1,282.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166.48 : 2,989.98 = 1,282.50 : x
2. Step 2: Convert to fraction form
   2,166.48/2,989.98 = 1,282.50/x
3. Step 3: Cross multiply
   2,166.48x = 2,989.98 × 1,282.50
4. Step 4: Simplify right side
   2,166.48x = 3,834,649.35
5. Step 5: Solve for x
   x = 3,834,649.35/2,166.48
6. Step 6: Final answer
   x = 1,769.99