Finding the Fourth Proportional to 1,912.55, 2,868.89 and 1,606.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,912.55 : 2,868.89 = 1,606.37 : x
2. Step 2: Convert to fraction form
   1,912.55/2,868.89 = 1,606.37/x
3. Step 3: Cross multiply
   1,912.55x = 2,868.89 × 1,606.37
4. Step 4: Simplify right side
   1,912.55x = 4,608,476.45
5. Step 5: Solve for x
   x = 4,608,476.45/1,912.55
6. Step 6: Final answer
   x = 2,409.60