Finding the Fourth Proportional to 1,191.99, 1,787.72 and 370.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.99 : 1,787.72 = 370.25 : x
2. Step 2: Convert to fraction form
   1,191.99/1,787.72 = 370.25/x
3. Step 3: Cross multiply
   1,191.99x = 1,787.72 × 370.25
4. Step 4: Simplify right side
   1,191.99x = 661,892.54
5. Step 5: Solve for x
   x = 661,892.54/1,191.99
6. Step 6: Final answer
   x = 555.28