Finding the Fourth Proportional to 1,483.06, 2,226.87 and 1,405.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.06 : 2,226.87 = 1,405.15 : x
2. Step 2: Convert to fraction form
   1,483.06/2,226.87 = 1,405.15/x
3. Step 3: Cross multiply
   1,483.06x = 2,226.87 × 1,405.15
4. Step 4: Simplify right side
   1,483.06x = 3,129,076.86
5. Step 5: Solve for x
   x = 3,129,076.86/1,483.06
6. Step 6: Final answer
   x = 2,109.88