Finding the Fourth Proportional to 3,953.69, 5,931.57 and 1,180.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953.69 : 5,931.57 = 1,180.37 : x
2. Step 2: Convert to fraction form
   3,953.69/5,931.57 = 1,180.37/x
3. Step 3: Cross multiply
   3,953.69x = 5,931.57 × 1,180.37
4. Step 4: Simplify right side
   3,953.69x = 7,001,433.17
5. Step 5: Solve for x
   x = 7,001,433.17/3,953.69
6. Step 6: Final answer
   x = 1,770.86