Finding the Fourth Proportional to 1,948.27, 2,688.57 and 1,064.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948.27 : 2,688.57 = 1,064.05 : x
2. Step 2: Convert to fraction form
   1,948.27/2,688.57 = 1,064.05/x
3. Step 3: Cross multiply
   1,948.27x = 2,688.57 × 1,064.05
4. Step 4: Simplify right side
   1,948.27x = 2,860,772.91
5. Step 5: Solve for x
   x = 2,860,772.91/1,948.27
6. Step 6: Final answer
   x = 1,468.37