Finding the Fourth Proportional to 2,311.52, 3,190.23 and 1,316.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.52 : 3,190.23 = 1,316.89 : x
2. Step 2: Convert to fraction form
   2,311.52/3,190.23 = 1,316.89/x
3. Step 3: Cross multiply
   2,311.52x = 3,190.23 × 1,316.89
4. Step 4: Simplify right side
   2,311.52x = 4,201,182.27
5. Step 5: Solve for x
   x = 4,201,182.27/2,311.52
6. Step 6: Final answer
   x = 1,817.50