Finding the Fourth Proportional to 1,942.00, 2,679.94 and 1,057.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.00 : 2,679.94 = 1,057.80 : x
2. Step 2: Convert to fraction form
   1,942.00/2,679.94 = 1,057.80/x
3. Step 3: Cross multiply
   1,942.00x = 2,679.94 × 1,057.80
4. Step 4: Simplify right side
   1,942.00x = 2,834,827.13
5. Step 5: Solve for x
   x = 2,834,827.13/1,942.00
6. Step 6: Final answer
   x = 1,459.75