Finding the Fourth Proportional to 1,485.80, 2,050.83 and 1,043.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.80 : 2,050.83 = 1,043.81 : x
2. Step 2: Convert to fraction form
   1,485.80/2,050.83 = 1,043.81/x
3. Step 3: Cross multiply
   1,485.80x = 2,050.83 × 1,043.81
4. Step 4: Simplify right side
   1,485.80x = 2,140,676.86
5. Step 5: Solve for x
   x = 2,140,676.86/1,485.80
6. Step 6: Final answer
   x = 1,440.76