Finding the Fourth Proportional to 2,123.01, 3,185.61 and 1,510.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.01 : 3,185.61 = 1,510.65 : x
2. Step 2: Convert to fraction form
   2,123.01/3,185.61 = 1,510.65/x
3. Step 3: Cross multiply
   2,123.01x = 3,185.61 × 1,510.65
4. Step 4: Simplify right side
   2,123.01x = 4,812,341.75
5. Step 5: Solve for x
   x = 4,812,341.75/2,123.01
6. Step 6: Final answer
   x = 2,266.75