Finding the Fourth Proportional to 2,499.16, 3,448.86 and 1,380.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.16 : 3,448.86 = 1,380.08 : x
2. Step 2: Convert to fraction form
   2,499.16/3,448.86 = 1,380.08/x
3. Step 3: Cross multiply
   2,499.16x = 3,448.86 × 1,380.08
4. Step 4: Simplify right side
   2,499.16x = 4,759,702.71
5. Step 5: Solve for x
   x = 4,759,702.71/2,499.16
6. Step 6: Final answer
   x = 1,904.52