Finding the Fourth Proportional to 2,050.51, 2,830.62 and 1,389.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,050.51 : 2,830.62 = 1,389.37 : x
2. Step 2: Convert to fraction form
   2,050.51/2,830.62 = 1,389.37/x
3. Step 3: Cross multiply
   2,050.51x = 2,830.62 × 1,389.37
4. Step 4: Simplify right side
   2,050.51x = 3,932,778.51
5. Step 5: Solve for x
   x = 3,932,778.51/2,050.51
6. Step 6: Final answer
   x = 1,917.95