Finding the Fourth Proportional to 1,392.96, 2,089.42 and 468.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392.96 : 2,089.42 = 468.34 : x
2. Step 2: Convert to fraction form
   1,392.96/2,089.42 = 468.34/x
3. Step 3: Cross multiply
   1,392.96x = 2,089.42 × 468.34
4. Step 4: Simplify right side
   1,392.96x = 978,558.96
5. Step 5: Solve for x
   x = 978,558.96/1,392.96
6. Step 6: Final answer
   x = 702.50