Finding the Fourth Proportional to 2,598.76, 3,897.36 and 1,299.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,598.76 : 3,897.36 = 1,299.88 : x
2. Step 2: Convert to fraction form
   2,598.76/3,897.36 = 1,299.88/x
3. Step 3: Cross multiply
   2,598.76x = 3,897.36 × 1,299.88
4. Step 4: Simplify right side
   2,598.76x = 5,066,100.32
5. Step 5: Solve for x
   x = 5,066,100.32/2,598.76
6. Step 6: Final answer
   x = 1,949.43