Finding the Fourth Proportional to 1,948.47, 2,688.86 and 1,064.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948.47 : 2,688.86 = 1,064.25 : x
2. Step 2: Convert to fraction form
   1,948.47/2,688.86 = 1,064.25/x
3. Step 3: Cross multiply
   1,948.47x = 2,688.86 × 1,064.25
4. Step 4: Simplify right side
   1,948.47x = 2,861,621.92
5. Step 5: Solve for x
   x = 2,861,621.92/1,948.47
6. Step 6: Final answer
   x = 1,468.65