Finding the Fourth Proportional to 1,601.15, 2,389.20 and 1,268.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.15 : 2,389.20 = 1,268.31 : x
2. Step 2: Convert to fraction form
   1,601.15/2,389.20 = 1,268.31/x
3. Step 3: Cross multiply
   1,601.15x = 2,389.20 × 1,268.31
4. Step 4: Simplify right side
   1,601.15x = 3,030,246.25
5. Step 5: Solve for x
   x = 3,030,246.25/1,601.15
6. Step 6: Final answer
   x = 1,892.54