Finding the Fourth Proportional to 3,123.07, 4,686.89 and 2,303.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.07 : 4,686.89 = 2,303.55 : x
2. Step 2: Convert to fraction form
   3,123.07/4,686.89 = 2,303.55/x
3. Step 3: Cross multiply
   3,123.07x = 4,686.89 × 2,303.55
4. Step 4: Simplify right side
   3,123.07x = 10,796,473.94
5. Step 5: Solve for x
   x = 10,796,473.94/3,123.07
6. Step 6: Final answer
   x = 3,457.01