Finding the Fourth Proportional to 1,186.55, 1,776.18 and 1,011.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,186.55 : 1,776.18 = 1,011.59 : x
2. Step 2: Convert to fraction form
   1,186.55/1,776.18 = 1,011.59/x
3. Step 3: Cross multiply
   1,186.55x = 1,776.18 × 1,011.59
4. Step 4: Simplify right side
   1,186.55x = 1,796,770.37
5. Step 5: Solve for x
   x = 1,796,770.37/1,186.55
6. Step 6: Final answer
   x = 1,514.28