Finding the Fourth Proportional to 1,100.78, 1,651.14 and 370.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.78 : 1,651.14 = 370.16 : x
2. Step 2: Convert to fraction form
   1,100.78/1,651.14 = 370.16/x
3. Step 3: Cross multiply
   1,100.78x = 1,651.14 × 370.16
4. Step 4: Simplify right side
   1,100.78x = 611,185.98
5. Step 5: Solve for x
   x = 611,185.98/1,100.78
6. Step 6: Final answer
   x = 555.23