Finding the Fourth Proportional to 1,047.52, 1,445.53 and 605.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.52 : 1,445.53 = 605.40 : x
2. Step 2: Convert to fraction form
   1,047.52/1,445.53 = 605.40/x
3. Step 3: Cross multiply
   1,047.52x = 1,445.53 × 605.40
4. Step 4: Simplify right side
   1,047.52x = 875,123.86
5. Step 5: Solve for x
   x = 875,123.86/1,047.52
6. Step 6: Final answer
   x = 835.42