Finding the Fourth Proportional to 2,196.45, 3,035.48 and 1,638.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.45 : 3,035.48 = 1,638.77 : x
2. Step 2: Convert to fraction form
   2,196.45/3,035.48 = 1,638.77/x
3. Step 3: Cross multiply
   2,196.45x = 3,035.48 × 1,638.77
4. Step 4: Simplify right side
   2,196.45x = 4,974,430.19
5. Step 5: Solve for x
   x = 4,974,430.19/2,196.45
6. Step 6: Final answer
   x = 2,264.76