Finding the Fourth Proportional to 1,186.72, 1,776.63 and 895.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,186.72 : 1,776.63 = 895.42 : x
2. Step 2: Convert to fraction form
   1,186.72/1,776.63 = 895.42/x
3. Step 3: Cross multiply
   1,186.72x = 1,776.63 × 895.42
4. Step 4: Simplify right side
   1,186.72x = 1,590,835.61
5. Step 5: Solve for x
   x = 1,590,835.61/1,186.72
6. Step 6: Final answer
   x = 1,340.53