Finding the Fourth Proportional to 1,147.83, 1,719.01 and 627.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147.83 : 1,719.01 = 627.05 : x
2. Step 2: Convert to fraction form
   1,147.83/1,719.01 = 627.05/x
3. Step 3: Cross multiply
   1,147.83x = 1,719.01 × 627.05
4. Step 4: Simplify right side
   1,147.83x = 1,077,905.22
5. Step 5: Solve for x
   x = 1,077,905.22/1,147.83
6. Step 6: Final answer
   x = 939.08