Finding the Fourth Proportional to 2,599.49, 3,896.61 and 933.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599.49 : 3,896.61 = 933.12 : x
2. Step 2: Convert to fraction form
   2,599.49/3,896.61 = 933.12/x
3. Step 3: Cross multiply
   2,599.49x = 3,896.61 × 933.12
4. Step 4: Simplify right side
   2,599.49x = 3,636,001.22
5. Step 5: Solve for x
   x = 3,636,001.22/2,599.49
6. Step 6: Final answer
   x = 1,398.74