Finding the Fourth Proportional to 1,191.83, 1,787.72 and 370.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.83 : 1,787.72 = 370.10 : x
2. Step 2: Convert to fraction form
   1,191.83/1,787.72 = 370.10/x
3. Step 3: Cross multiply
   1,191.83x = 1,787.72 × 370.10
4. Step 4: Simplify right side
   1,191.83x = 661,635.17
5. Step 5: Solve for x
   x = 661,635.17/1,191.83
6. Step 6: Final answer
   x = 555.14