Finding the Fourth Proportional to 2,420.15, 3,633.86 and 1,381.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,420.15 : 3,633.86 = 1,381.32 : x
2. Step 2: Convert to fraction form
   2,420.15/3,633.86 = 1,381.32/x
3. Step 3: Cross multiply
   2,420.15x = 3,633.86 × 1,381.32
4. Step 4: Simplify right side
   2,420.15x = 5,019,526.95
5. Step 5: Solve for x
   x = 5,019,526.95/2,420.15
6. Step 6: Final answer
   x = 2,074.06