Finding the Fourth Proportional to 1,077.98, 1,487.50 and 605.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077.98 : 1,487.50 = 605.95 : x
2. Step 2: Convert to fraction form
   1,077.98/1,487.50 = 605.95/x
3. Step 3: Cross multiply
   1,077.98x = 1,487.50 × 605.95
4. Step 4: Simplify right side
   1,077.98x = 901,345.39
5. Step 5: Solve for x
   x = 901,345.39/1,077.98
6. Step 6: Final answer
   x = 836.15