Finding the Fourth Proportional to 1,983.55, 2,975.47 and 667.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,983.55 : 2,975.47 = 667.30 : x
2. Step 2: Convert to fraction form
   1,983.55/2,975.47 = 667.30/x
3. Step 3: Cross multiply
   1,983.55x = 2,975.47 × 667.30
4. Step 4: Simplify right side
   1,983.55x = 1,985,532.35
5. Step 5: Solve for x
   x = 1,985,532.35/1,983.55
6. Step 6: Final answer
   x = 1,001.00