Finding the Fourth Proportional to 2,599.88, 3,897.99 and 1,300.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599.88 : 3,897.99 = 1,300.43 : x
2. Step 2: Convert to fraction form
   2,599.88/3,897.99 = 1,300.43/x
3. Step 3: Cross multiply
   2,599.88x = 3,897.99 × 1,300.43
4. Step 4: Simplify right side
   2,599.88x = 5,069,063.14
5. Step 5: Solve for x
   x = 5,069,063.14/2,599.88
6. Step 6: Final answer
   x = 1,949.73