Finding the Fourth Proportional to 2,045.39, 2,823.01 and 1,206.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.39 : 2,823.01 = 1,206.05 : x
2. Step 2: Convert to fraction form
   2,045.39/2,823.01 = 1,206.05/x
3. Step 3: Cross multiply
   2,045.39x = 2,823.01 × 1,206.05
4. Step 4: Simplify right side
   2,045.39x = 3,404,691.21
5. Step 5: Solve for x
   x = 3,404,691.21/2,045.39
6. Step 6: Final answer
   x = 1,664.57