Finding the Fourth Proportional to 1,858.29, 2,564.51 and 1,019.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.29 : 2,564.51 = 1,019.03 : x
2. Step 2: Convert to fraction form
   1,858.29/2,564.51 = 1,019.03/x
3. Step 3: Cross multiply
   1,858.29x = 2,564.51 × 1,019.03
4. Step 4: Simplify right side
   1,858.29x = 2,613,314.87
5. Step 5: Solve for x
   x = 2,613,314.87/1,858.29
6. Step 6: Final answer
   x = 1,406.30