Finding the Fourth Proportional to 2,003.42, 2,984.98 and 1,891.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.42 : 2,984.98 = 1,891.64 : x
2. Step 2: Convert to fraction form
   2,003.42/2,984.98 = 1,891.64/x
3. Step 3: Cross multiply
   2,003.42x = 2,984.98 × 1,891.64
4. Step 4: Simplify right side
   2,003.42x = 5,646,507.57
5. Step 5: Solve for x
   x = 5,646,507.57/2,003.42
6. Step 6: Final answer
   x = 2,818.43