Finding the Fourth Proportional to 1,774.06, 2,658.57 and 1,308.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,774.06 : 2,658.57 = 1,308.18 : x
2. Step 2: Convert to fraction form
   1,774.06/2,658.57 = 1,308.18/x
3. Step 3: Cross multiply
   1,774.06x = 2,658.57 × 1,308.18
4. Step 4: Simplify right side
   1,774.06x = 3,477,888.10
5. Step 5: Solve for x
   x = 3,477,888.10/1,774.06
6. Step 6: Final answer
   x = 1,960.41