Finding the Fourth Proportional to 2,152.84, 2,970.96 and 1,208.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.84 : 2,970.96 = 1,208.83 : x
2. Step 2: Convert to fraction form
   2,152.84/2,970.96 = 1,208.83/x
3. Step 3: Cross multiply
   2,152.84x = 2,970.96 × 1,208.83
4. Step 4: Simplify right side
   2,152.84x = 3,591,385.58
5. Step 5: Solve for x
   x = 3,591,385.58/2,152.84
6. Step 6: Final answer
   x = 1,668.21