Finding the Fourth Proportional to 2,113.45, 2,916.51 and 1,169.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.45 : 2,916.51 = 1,169.22 : x
2. Step 2: Convert to fraction form
   2,113.45/2,916.51 = 1,169.22/x
3. Step 3: Cross multiply
   2,113.45x = 2,916.51 × 1,169.22
4. Step 4: Simplify right side
   2,113.45x = 3,410,041.82
5. Step 5: Solve for x
   x = 3,410,041.82/2,113.45
6. Step 6: Final answer
   x = 1,613.50