Finding the Fourth Proportional to 1,212.02, 1,672.33 and 714.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,212.02 : 1,672.33 = 714.32 : x
2. Step 2: Convert to fraction form
   1,212.02/1,672.33 = 714.32/x
3. Step 3: Cross multiply
   1,212.02x = 1,672.33 × 714.32
4. Step 4: Simplify right side
   1,212.02x = 1,194,566.83
5. Step 5: Solve for x
   x = 1,194,566.83/1,212.02
6. Step 6: Final answer
   x = 985.60