Finding the Fourth Proportional to 3,618.15, 5,423.72 and 1,974.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,618.15 : 5,423.72 = 1,974.93 : x
2. Step 2: Convert to fraction form
   3,618.15/5,423.72 = 1,974.93/x
3. Step 3: Cross multiply
   3,618.15x = 5,423.72 × 1,974.93
4. Step 4: Simplify right side
   3,618.15x = 10,711,457.46
5. Step 5: Solve for x
   x = 10,711,457.46/3,618.15
6. Step 6: Final answer
   x = 2,960.48