Finding the Fourth Proportional to 2,499.21, 3,449.23 and 1,505.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.21 : 3,449.23 = 1,505.03 : x
2. Step 2: Convert to fraction form
   2,499.21/3,449.23 = 1,505.03/x
3. Step 3: Cross multiply
   2,499.21x = 3,449.23 × 1,505.03
4. Step 4: Simplify right side
   2,499.21x = 5,191,173.62
5. Step 5: Solve for x
   x = 5,191,173.62/2,499.21
6. Step 6: Final answer
   x = 2,077.13