Finding the Fourth Proportional to 2,166.48, 2,989.89 and 1,282.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166.48 : 2,989.89 = 1,282.59 : x
2. Step 2: Convert to fraction form
   2,166.48/2,989.89 = 1,282.59/x
3. Step 3: Cross multiply
   2,166.48x = 2,989.89 × 1,282.59
4. Step 4: Simplify right side
   2,166.48x = 3,834,803.02
5. Step 5: Solve for x
   x = 3,834,803.02/2,166.48
6. Step 6: Final answer
   x = 1,770.06