Finding the Fourth Proportional to 1,929.30, 2,661.30 and 1,266.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,929.30 : 2,661.30 = 1,266.18 : x
2. Step 2: Convert to fraction form
   1,929.30/2,661.30 = 1,266.18/x
3. Step 3: Cross multiply
   1,929.30x = 2,661.30 × 1,266.18
4. Step 4: Simplify right side
   1,929.30x = 3,369,684.83
5. Step 5: Solve for x
   x = 3,369,684.83/1,929.30
6. Step 6: Final answer
   x = 1,746.58