Finding the Fourth Proportional to 3,123.50, 4,686.47 and 1,175.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.50 : 4,686.47 = 1,175.86 : x
2. Step 2: Convert to fraction form
   3,123.50/4,686.47 = 1,175.86/x
3. Step 3: Cross multiply
   3,123.50x = 4,686.47 × 1,175.86
4. Step 4: Simplify right side
   3,123.50x = 5,510,603.30
5. Step 5: Solve for x
   x = 5,510,603.30/3,123.50
6. Step 6: Final answer
   x = 1,764.24