Finding the Fourth Proportional to 1,100.72, 1,651.32 and 370.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.72 : 1,651.32 = 370.31 : x
2. Step 2: Convert to fraction form
   1,100.72/1,651.32 = 370.31/x
3. Step 3: Cross multiply
   1,100.72x = 1,651.32 × 370.31
4. Step 4: Simplify right side
   1,100.72x = 611,492.05
5. Step 5: Solve for x
   x = 611,492.05/1,100.72
6. Step 6: Final answer
   x = 555.54