Finding the Fourth Proportional to 1,800.15, 2,483.82 and 1,212.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,800.15 : 2,483.82 = 1,212.41 : x
2. Step 2: Convert to fraction form
   1,800.15/2,483.82 = 1,212.41/x
3. Step 3: Cross multiply
   1,800.15x = 2,483.82 × 1,212.41
4. Step 4: Simplify right side
   1,800.15x = 3,011,395.79
5. Step 5: Solve for x
   x = 3,011,395.79/1,800.15
6. Step 6: Final answer
   x = 1,672.86