Finding the Fourth Proportional to 1,941.81, 2,679.71 and 1,057.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,941.81 : 2,679.71 = 1,057.61 : x
2. Step 2: Convert to fraction form
   1,941.81/2,679.71 = 1,057.61/x
3. Step 3: Cross multiply
   1,941.81x = 2,679.71 × 1,057.61
4. Step 4: Simplify right side
   1,941.81x = 2,834,069.41
5. Step 5: Solve for x
   x = 2,834,069.41/1,941.81
6. Step 6: Final answer
   x = 1,459.50