Finding the Fourth Proportional to 2,003.90, 3,001.20 and 1,934.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.90 : 3,001.20 = 1,934.69 : x
2. Step 2: Convert to fraction form
   2,003.90/3,001.20 = 1,934.69/x
3. Step 3: Cross multiply
   2,003.90x = 3,001.20 × 1,934.69
4. Step 4: Simplify right side
   2,003.90x = 5,806,391.63
5. Step 5: Solve for x
   x = 5,806,391.63/2,003.90
6. Step 6: Final answer
   x = 2,897.55