Finding the Fourth Proportional to 1,931.27, 2,890.42 and 1,604.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.27 : 2,890.42 = 1,604.03 : x
2. Step 2: Convert to fraction form
   1,931.27/2,890.42 = 1,604.03/x
3. Step 3: Cross multiply
   1,931.27x = 2,890.42 × 1,604.03
4. Step 4: Simplify right side
   1,931.27x = 4,636,301.93
5. Step 5: Solve for x
   x = 4,636,301.93/1,931.27
6. Step 6: Final answer
   x = 2,400.66