Finding the Fourth Proportional to 2,499.10, 3,448.67 and 1,379.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.10 : 3,448.67 = 1,379.98 : x
2. Step 2: Convert to fraction form
   2,499.10/3,448.67 = 1,379.98/x
3. Step 3: Cross multiply
   2,499.10x = 3,448.67 × 1,379.98
4. Step 4: Simplify right side
   2,499.10x = 4,759,080.11
5. Step 5: Solve for x
   x = 4,759,080.11/2,499.10
6. Step 6: Final answer
   x = 1,904.32