Finding the Fourth Proportional to 1,499.06, 2,249.40 and 1,421.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.06 : 2,249.40 = 1,421.30 : x
2. Step 2: Convert to fraction form
   1,499.06/2,249.40 = 1,421.30/x
3. Step 3: Cross multiply
   1,499.06x = 2,249.40 × 1,421.30
4. Step 4: Simplify right side
   1,499.06x = 3,197,072.22
5. Step 5: Solve for x
   x = 3,197,072.22/1,499.06
6. Step 6: Final answer
   x = 2,132.72