Finding the Fourth Proportional to 2,097.85, 3,146.78 and 637.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.85 : 3,146.78 = 637.00 : x
2. Step 2: Convert to fraction form
   2,097.85/3,146.78 = 637.00/x
3. Step 3: Cross multiply
   2,097.85x = 3,146.78 × 637.00
4. Step 4: Simplify right side
   2,097.85x = 2,004,479.94
5. Step 5: Solve for x
   x = 2,004,479.94/2,097.85
6. Step 6: Final answer
   x = 955.49