Finding the Fourth Proportional to 1,077.86, 1,487.34 and 605.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077.86 : 1,487.34 = 605.62 : x
2. Step 2: Convert to fraction form
   1,077.86/1,487.34 = 605.62/x
3. Step 3: Cross multiply
   1,077.86x = 1,487.34 × 605.62
4. Step 4: Simplify right side
   1,077.86x = 900,762.85
5. Step 5: Solve for x
   x = 900,762.85/1,077.86
6. Step 6: Final answer
   x = 835.70