Finding the Fourth Proportional to 1,459.49, 2,188.72 and 472.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,459.49 : 2,188.72 = 472.04 : x
2. Step 2: Convert to fraction form
   1,459.49/2,188.72 = 472.04/x
3. Step 3: Cross multiply
   1,459.49x = 2,188.72 × 472.04
4. Step 4: Simplify right side
   1,459.49x = 1,033,173.55
5. Step 5: Solve for x
   x = 1,033,173.55/1,459.49
6. Step 6: Final answer
   x = 707.90