Finding the Fourth Proportional to 1,242.55, 1,714.73 and 683.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242.55 : 1,714.73 = 683.00 : x
2. Step 2: Convert to fraction form
   1,242.55/1,714.73 = 683.00/x
3. Step 3: Cross multiply
   1,242.55x = 1,714.73 × 683.00
4. Step 4: Simplify right side
   1,242.55x = 1,171,168.52
5. Step 5: Solve for x
   x = 1,171,168.52/1,242.55
6. Step 6: Final answer
   x = 942.55