Finding the Fourth Proportional to 1,156.34, 1,595.94 and 1,086.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.34 : 1,595.94 = 1,086.05 : x
2. Step 2: Convert to fraction form
   1,156.34/1,595.94 = 1,086.05/x
3. Step 3: Cross multiply
   1,156.34x = 1,595.94 × 1,086.05
4. Step 4: Simplify right side
   1,156.34x = 1,733,270.64
5. Step 5: Solve for x
   x = 1,733,270.64/1,156.34
6. Step 6: Final answer
   x = 1,498.93