Finding the Fourth Proportional to 2,003.40, 2,988.63 and 2,003.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.40 : 2,988.63 = 2,003.40 : x
2. Step 2: Convert to fraction form
   2,003.40/2,988.63 = 2,003.40/x
3. Step 3: Cross multiply
   2,003.40x = 2,988.63 × 2,003.40
4. Step 4: Simplify right side
   2,003.40x = 5,987,421.34
5. Step 5: Solve for x
   x = 5,987,421.34/2,003.40
6. Step 6: Final answer
   x = 2,988.63