Finding the Fourth Proportional to 2,653.29, 3,980.01 and 1,266.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,653.29 : 3,980.01 = 1,266.77 : x
2. Step 2: Convert to fraction form
   2,653.29/3,980.01 = 1,266.77/x
3. Step 3: Cross multiply
   2,653.29x = 3,980.01 × 1,266.77
4. Step 4: Simplify right side
   2,653.29x = 5,041,757.27
5. Step 5: Solve for x
   x = 5,041,757.27/2,653.29
6. Step 6: Final answer
   x = 1,900.19