Finding the Fourth Proportional to 2,093.40, 2,888.82 and 1,209.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,093.40 : 2,888.82 = 1,209.06 : x
2. Step 2: Convert to fraction form
   2,093.40/2,888.82 = 1,209.06/x
3. Step 3: Cross multiply
   2,093.40x = 2,888.82 × 1,209.06
4. Step 4: Simplify right side
   2,093.40x = 3,492,756.71
5. Step 5: Solve for x
   x = 3,492,756.71/2,093.40
6. Step 6: Final answer
   x = 1,668.46