Finding the Fourth Proportional to 1,174.31, 1,620.61 and 677.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,174.31 : 1,620.61 = 677.00 : x
2. Step 2: Convert to fraction form
   1,174.31/1,620.61 = 677.00/x
3. Step 3: Cross multiply
   1,174.31x = 1,620.61 × 677.00
4. Step 4: Simplify right side
   1,174.31x = 1,097,155.33
5. Step 5: Solve for x
   x = 1,097,155.33/1,174.31
6. Step 6: Final answer
   x = 934.30