Finding the Fourth Proportional to 1,108.01, 1,658.50 and 619.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108.01 : 1,658.50 = 619.58 : x
2. Step 2: Convert to fraction form
   1,108.01/1,658.50 = 619.58/x
3. Step 3: Cross multiply
   1,108.01x = 1,658.50 × 619.58
4. Step 4: Simplify right side
   1,108.01x = 1,027,563.59
5. Step 5: Solve for x
   x = 1,027,563.59/1,108.01
6. Step 6: Final answer
   x = 927.40