Finding the Fourth Proportional to 3,621.57, 5,435.64 and 1,867.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,621.57 : 5,435.64 = 1,867.83 : x
2. Step 2: Convert to fraction form
   3,621.57/5,435.64 = 1,867.83/x
3. Step 3: Cross multiply
   3,621.57x = 5,435.64 × 1,867.83
4. Step 4: Simplify right side
   3,621.57x = 10,152,851.46
5. Step 5: Solve for x
   x = 10,152,851.46/3,621.57
6. Step 6: Final answer
   x = 2,803.44