Finding the Fourth Proportional to 1,945.81, 2,682.01 and 1,378.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.81 : 2,682.01 = 1,378.83 : x
2. Step 2: Convert to fraction form
   1,945.81/2,682.01 = 1,378.83/x
3. Step 3: Cross multiply
   1,945.81x = 2,682.01 × 1,378.83
4. Step 4: Simplify right side
   1,945.81x = 3,698,035.85
5. Step 5: Solve for x
   x = 3,698,035.85/1,945.81
6. Step 6: Final answer
   x = 1,900.52