Finding the Fourth Proportional to 2,408.43, 3,612.01 and 947.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,408.43 : 3,612.01 = 947.31 : x
2. Step 2: Convert to fraction form
   2,408.43/3,612.01 = 947.31/x
3. Step 3: Cross multiply
   2,408.43x = 3,612.01 × 947.31
4. Step 4: Simplify right side
   2,408.43x = 3,421,688.46
5. Step 5: Solve for x
   x = 3,421,688.46/2,408.43
6. Step 6: Final answer
   x = 1,420.71