Finding the Fourth Proportional to 2,007.86, 2,768.18 and 1,536.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.86 : 2,768.18 = 1,536.03 : x
2. Step 2: Convert to fraction form
   2,007.86/2,768.18 = 1,536.03/x
3. Step 3: Cross multiply
   2,007.86x = 2,768.18 × 1,536.03
4. Step 4: Simplify right side
   2,007.86x = 4,251,999.85
5. Step 5: Solve for x
   x = 4,251,999.85/2,007.86
6. Step 6: Final answer
   x = 2,117.68