Finding the Fourth Proportional to 2,154.96, 3,230.82 and 1,113.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154.96 : 3,230.82 = 1,113.57 : x
2. Step 2: Convert to fraction form
   2,154.96/3,230.82 = 1,113.57/x
3. Step 3: Cross multiply
   2,154.96x = 3,230.82 × 1,113.57
4. Step 4: Simplify right side
   2,154.96x = 3,597,744.23
5. Step 5: Solve for x
   x = 3,597,744.23/2,154.96
6. Step 6: Final answer
   x = 1,669.52