Finding the Fourth Proportional to 1,872.01, 2,583.69 and 1,086.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,872.01 : 2,583.69 = 1,086.51 : x
2. Step 2: Convert to fraction form
   1,872.01/2,583.69 = 1,086.51/x
3. Step 3: Cross multiply
   1,872.01x = 2,583.69 × 1,086.51
4. Step 4: Simplify right side
   1,872.01x = 2,807,205.02
5. Step 5: Solve for x
   x = 2,807,205.02/1,872.01
6. Step 6: Final answer
   x = 1,499.57