Finding the Fourth Proportional to 1,858, 2,564.22 and 1,030

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858 : 2,564.22 = 1,030 : x
2. Step 2: Convert to fraction form
   1,858/2,564.22 = 1,030/x
3. Step 3: Cross multiply
   1,858x = 2,564.22 × 1,030
4. Step 4: Simplify right side
   1,858x = 2,641,146.60
5. Step 5: Solve for x
   x = 2,641,146.60/1,858
6. Step 6: Final answer
   x = 1,421.50