Finding the Fourth Proportional to 2,382.25, 3,575.58 and 1,213.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,382.25 : 3,575.58 = 1,213.10 : x
2. Step 2: Convert to fraction form
   2,382.25/3,575.58 = 1,213.10/x
3. Step 3: Cross multiply
   2,382.25x = 3,575.58 × 1,213.10
4. Step 4: Simplify right side
   2,382.25x = 4,337,522.61
5. Step 5: Solve for x
   x = 4,337,522.61/2,382.25
6. Step 6: Final answer
   x = 1,820.77