Finding the Fourth Proportional to 2,003.64, 3,003.91 and 1,385.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.64 : 3,003.91 = 1,385.56 : x
2. Step 2: Convert to fraction form
   2,003.64/3,003.91 = 1,385.56/x
3. Step 3: Cross multiply
   2,003.64x = 3,003.91 × 1,385.56
4. Step 4: Simplify right side
   2,003.64x = 4,162,084.83
5. Step 5: Solve for x
   x = 4,162,084.83/2,003.64
6. Step 6: Final answer
   x = 2,077.27