Finding the Fourth Proportional to 1,858.27, 2,564.53 and 1,030.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.27 : 2,564.53 = 1,030.27 : x
2. Step 2: Convert to fraction form
   1,858.27/2,564.53 = 1,030.27/x
3. Step 3: Cross multiply
   1,858.27x = 2,564.53 × 1,030.27
4. Step 4: Simplify right side
   1,858.27x = 2,642,166.02
5. Step 5: Solve for x
   x = 2,642,166.02/1,858.27
6. Step 6: Final answer
   x = 1,421.84