Finding the Fourth Proportional to 2,384.87, 3,574.42 and 1,213.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,384.87 : 3,574.42 = 1,213.12 : x
2. Step 2: Convert to fraction form
   2,384.87/3,574.42 = 1,213.12/x
3. Step 3: Cross multiply
   2,384.87x = 3,574.42 × 1,213.12
4. Step 4: Simplify right side
   2,384.87x = 4,336,200.39
5. Step 5: Solve for x
   x = 4,336,200.39/2,384.87
6. Step 6: Final answer
   x = 1,818.21