Finding the Fourth Proportional to 2,003.13, 2,990.24 and 1,913.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.13 : 2,990.24 = 1,913.27 : x
2. Step 2: Convert to fraction form
   2,003.13/2,990.24 = 1,913.27/x
3. Step 3: Cross multiply
   2,003.13x = 2,990.24 × 1,913.27
4. Step 4: Simplify right side
   2,003.13x = 5,721,111.97
5. Step 5: Solve for x
   x = 5,721,111.97/2,003.13
6. Step 6: Final answer
   x = 2,856.09