Finding the Fourth Proportional to 2,051.00, 2,831.50 and 1,379.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.00 : 2,831.50 = 1,379.78 : x
2. Step 2: Convert to fraction form
   2,051.00/2,831.50 = 1,379.78/x
3. Step 3: Cross multiply
   2,051.00x = 2,831.50 × 1,379.78
4. Step 4: Simplify right side
   2,051.00x = 3,906,833.41
5. Step 5: Solve for x
   x = 3,906,833.41/2,051.00
6. Step 6: Final answer
   x = 1,904.84