Finding the Fourth Proportional to 1,086.37, 1,636.27 and 1,034.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.37 : 1,636.27 = 1,034.53 : x
2. Step 2: Convert to fraction form
   1,086.37/1,636.27 = 1,034.53/x
3. Step 3: Cross multiply
   1,086.37x = 1,636.27 × 1,034.53
4. Step 4: Simplify right side
   1,086.37x = 1,692,770.40
5. Step 5: Solve for x
   x = 1,692,770.40/1,086.37
6. Step 6: Final answer
   x = 1,558.19