Finding the Fourth Proportional to 1,105.38, 1,656.93 and 374.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.38 : 1,656.93 = 374.71 : x
2. Step 2: Convert to fraction form
   1,105.38/1,656.93 = 374.71/x
3. Step 3: Cross multiply
   1,105.38x = 1,656.93 × 374.71
4. Step 4: Simplify right side
   1,105.38x = 620,866.37
5. Step 5: Solve for x
   x = 620,866.37/1,105.38
6. Step 6: Final answer
   x = 561.68