Finding the Fourth Proportional to 1,860.01, 2,566.79 and 1,020.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,860.01 : 2,566.79 = 1,020.71 : x
2. Step 2: Convert to fraction form
   1,860.01/2,566.79 = 1,020.71/x
3. Step 3: Cross multiply
   1,860.01x = 2,566.79 × 1,020.71
4. Step 4: Simplify right side
   1,860.01x = 2,619,948.22
5. Step 5: Solve for x
   x = 2,619,948.22/1,860.01
6. Step 6: Final answer
   x = 1,408.57