Finding the Fourth Proportional to 3,705.31, 5,116.73 and 2,381.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,705.31 : 5,116.73 = 2,381.32 : x
2. Step 2: Convert to fraction form
   3,705.31/5,116.73 = 2,381.32/x
3. Step 3: Cross multiply
   3,705.31x = 5,116.73 × 2,381.32
4. Step 4: Simplify right side
   3,705.31x = 12,184,571.48
5. Step 5: Solve for x
   x = 12,184,571.48/3,705.31
6. Step 6: Final answer
   x = 3,288.41