Finding the Fourth Proportional to 1,977.89, 2,945.91 and 1,873.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,977.89 : 2,945.91 = 1,873.79 : x
2. Step 2: Convert to fraction form
   1,977.89/2,945.91 = 1,873.79/x
3. Step 3: Cross multiply
   1,977.89x = 2,945.91 × 1,873.79
4. Step 4: Simplify right side
   1,977.89x = 5,520,007.33
5. Step 5: Solve for x
   x = 5,520,007.33/1,977.89
6. Step 6: Final answer
   x = 2,790.86