Finding the Fourth Proportional to 1,858.03, 2,564.37 and 1,061.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.03 : 2,564.37 = 1,061.35 : x
2. Step 2: Convert to fraction form
   1,858.03/2,564.37 = 1,061.35/x
3. Step 3: Cross multiply
   1,858.03x = 2,564.37 × 1,061.35
4. Step 4: Simplify right side
   1,858.03x = 2,721,694.10
5. Step 5: Solve for x
   x = 2,721,694.10/1,858.03
6. Step 6: Final answer
   x = 1,464.83