Finding the Fourth Proportional to 3,123.60, 4,684.12 and 1,174.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.60 : 4,684.12 = 1,174.76 : x
2. Step 2: Convert to fraction form
   3,123.60/4,684.12 = 1,174.76/x
3. Step 3: Cross multiply
   3,123.60x = 4,684.12 × 1,174.76
4. Step 4: Simplify right side
   3,123.60x = 5,502,716.81
5. Step 5: Solve for x
   x = 5,502,716.81/3,123.60
6. Step 6: Final answer
   x = 1,761.66