Finding the Fourth Proportional to 3,123.09, 4,683.83 and 1,561.95

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.09 : 4,683.83 = 1,561.95 : x
2. Step 2: Convert to fraction form
   3,123.09/4,683.83 = 1,561.95/x
3. Step 3: Cross multiply
   3,123.09x = 4,683.83 × 1,561.95
4. Step 4: Simplify right side
   3,123.09x = 7,315,900.46
5. Step 5: Solve for x
   x = 7,315,900.46/3,123.09
6. Step 6: Final answer
   x = 2,342.52