Finding the Fourth Proportional to 2,301.57, 3,176.67 and 1,405.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.57 : 3,176.67 = 1,405.50 : x
2. Step 2: Convert to fraction form
   2,301.57/3,176.67 = 1,405.50/x
3. Step 3: Cross multiply
   2,301.57x = 3,176.67 × 1,405.50
4. Step 4: Simplify right side
   2,301.57x = 4,464,809.69
5. Step 5: Solve for x
   x = 4,464,809.69/2,301.57
6. Step 6: Final answer
   x = 1,939.90