Finding the Fourth Proportional to 2,385.08, 3,579.72 and 1,997.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.08 : 3,579.72 = 1,997.48 : x
2. Step 2: Convert to fraction form
   2,385.08/3,579.72 = 1,997.48/x
3. Step 3: Cross multiply
   2,385.08x = 3,579.72 × 1,997.48
4. Step 4: Simplify right side
   2,385.08x = 7,150,419.11
5. Step 5: Solve for x
   x = 7,150,419.11/2,385.08
6. Step 6: Final answer
   x = 2,997.98