Finding the Fourth Proportional to 3,607.86, 5,408.46 and 1,298.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,607.86 : 5,408.46 = 1,298.82 : x
2. Step 2: Convert to fraction form
   3,607.86/5,408.46 = 1,298.82/x
3. Step 3: Cross multiply
   3,607.86x = 5,408.46 × 1,298.82
4. Step 4: Simplify right side
   3,607.86x = 7,024,616.02
5. Step 5: Solve for x
   x = 7,024,616.02/3,607.86
6. Step 6: Final answer
   x = 1,947.03