Finding the Fourth Proportional to 1,533.42, 2,298.56 and 608.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,533.42 : 2,298.56 = 608.72 : x
2. Step 2: Convert to fraction form
   1,533.42/2,298.56 = 608.72/x
3. Step 3: Cross multiply
   1,533.42x = 2,298.56 × 608.72
4. Step 4: Simplify right side
   1,533.42x = 1,399,164.91
5. Step 5: Solve for x
   x = 1,399,164.91/1,533.42
6. Step 6: Final answer
   x = 912.45