Finding the Fourth Proportional to 2,448.07, 3,380.72 and 2,091.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,448.07 : 3,380.72 = 2,091.89 : x
2. Step 2: Convert to fraction form
   2,448.07/3,380.72 = 2,091.89/x
3. Step 3: Cross multiply
   2,448.07x = 3,380.72 × 2,091.89
4. Step 4: Simplify right side
   2,448.07x = 7,072,092.35
5. Step 5: Solve for x
   x = 7,072,092.35/2,448.07
6. Step 6: Final answer
   x = 2,888.85