Finding the Fourth Proportional to 1,101.38, 1,651.72 and 370.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.38 : 1,651.72 = 370.78 : x
2. Step 2: Convert to fraction form
   1,101.38/1,651.72 = 370.78/x
3. Step 3: Cross multiply
   1,101.38x = 1,651.72 × 370.78
4. Step 4: Simplify right side
   1,101.38x = 612,422.89
5. Step 5: Solve for x
   x = 612,422.89/1,101.38
6. Step 6: Final answer
   x = 556.05