Finding the Fourth Proportional to 1,152.01, 1,589.82 and 641.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.01 : 1,589.82 = 641.00 : x
2. Step 2: Convert to fraction form
   1,152.01/1,589.82 = 641.00/x
3. Step 3: Cross multiply
   1,152.01x = 1,589.82 × 641.00
4. Step 4: Simplify right side
   1,152.01x = 1,019,076.19
5. Step 5: Solve for x
   x = 1,019,076.19/1,152.01
6. Step 6: Final answer
   x = 884.61