Finding the Fourth Proportional to 2,091.02, 2,885.78 and 1,206.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.02 : 2,885.78 = 1,206.95 : x
2. Step 2: Convert to fraction form
   2,091.02/2,885.78 = 1,206.95/x
3. Step 3: Cross multiply
   2,091.02x = 2,885.78 × 1,206.95
4. Step 4: Simplify right side
   2,091.02x = 3,482,990.20
5. Step 5: Solve for x
   x = 3,482,990.20/2,091.02
6. Step 6: Final answer
   x = 1,665.69