Finding the Fourth Proportional to 1,408.91, 1,940.00 and 1,277.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.91 : 1,940.00 = 1,277.06 : x
2. Step 2: Convert to fraction form
   1,408.91/1,940.00 = 1,277.06/x
3. Step 3: Cross multiply
   1,408.91x = 1,940.00 × 1,277.06
4. Step 4: Simplify right side
   1,408.91x = 2,477,480.31
5. Step 5: Solve for x
   x = 2,477,480.31/1,408.91
6. Step 6: Final answer
   x = 1,758.44