Finding the Fourth Proportional to 2,803.05, 3,869.81 and 1,953.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,803.05 : 3,869.81 = 1,953.54 : x
2. Step 2: Convert to fraction form
   2,803.05/3,869.81 = 1,953.54/x
3. Step 3: Cross multiply
   2,803.05x = 3,869.81 × 1,953.54
4. Step 4: Simplify right side
   2,803.05x = 7,559,818.86
5. Step 5: Solve for x
   x = 7,559,818.86/2,803.05
6. Step 6: Final answer
   x = 2,697.00