Finding the Fourth Proportional to 2,313.21, 3,470.42 and 926.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,313.21 : 3,470.42 = 926.59 : x
2. Step 2: Convert to fraction form
   2,313.21/3,470.42 = 926.59/x
3. Step 3: Cross multiply
   2,313.21x = 3,470.42 × 926.59
4. Step 4: Simplify right side
   2,313.21x = 3,215,654.01
5. Step 5: Solve for x
   x = 3,215,654.01/2,313.21
6. Step 6: Final answer
   x = 1,390.13