Finding the Fourth Proportional to 1,941.25, 2,678.98 and 1,057

Step by Step Solution

1. Step 1: Write the proportion equation
   1,941.25 : 2,678.98 = 1,057 : x
2. Step 2: Convert to fraction form
   1,941.25/2,678.98 = 1,057/x
3. Step 3: Cross multiply
   1,941.25x = 2,678.98 × 1,057
4. Step 4: Simplify right side
   1,941.25x = 2,831,681.86
5. Step 5: Solve for x
   x = 2,831,681.86/1,941.25
6. Step 6: Final answer
   x = 1,458.69