Finding the Fourth Proportional to 3,111.60, 4,668.23 and 1,264.00

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.60 : 4,668.23 = 1,264.00 : x
2. Step 2: Convert to fraction form
   3,111.60/4,668.23 = 1,264.00/x
3. Step 3: Cross multiply
   3,111.60x = 4,668.23 × 1,264.00
4. Step 4: Simplify right side
   3,111.60x = 5,900,631.05
5. Step 5: Solve for x
   x = 5,900,631.05/3,111.60
6. Step 6: Final answer
   x = 1,896.33