Finding the Fourth Proportional to 1,200.51, 1,799.57 and 574.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.51 : 1,799.57 = 574.72 : x
2. Step 2: Convert to fraction form
   1,200.51/1,799.57 = 574.72/x
3. Step 3: Cross multiply
   1,200.51x = 1,799.57 × 574.72
4. Step 4: Simplify right side
   1,200.51x = 1,034,237.00
5. Step 5: Solve for x
   x = 1,034,237.00/1,200.51
6. Step 6: Final answer
   x = 861.50