Finding the Fourth Proportional to 2,598.07, 3,897.30 and 866.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,598.07 : 3,897.30 = 866.69 : x
2. Step 2: Convert to fraction form
   2,598.07/3,897.30 = 866.69/x
3. Step 3: Cross multiply
   2,598.07x = 3,897.30 × 866.69
4. Step 4: Simplify right side
   2,598.07x = 3,377,746.60
5. Step 5: Solve for x
   x = 3,377,746.60/2,598.07
6. Step 6: Final answer
   x = 1,300.10