Finding the Fourth Proportional to 1,856.34, 2,561.69 and 1,017.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.34 : 2,561.69 = 1,017.06 : x
2. Step 2: Convert to fraction form
   1,856.34/2,561.69 = 1,017.06/x
3. Step 3: Cross multiply
   1,856.34x = 2,561.69 × 1,017.06
4. Step 4: Simplify right side
   1,856.34x = 2,605,392.43
5. Step 5: Solve for x
   x = 2,605,392.43/1,856.34
6. Step 6: Final answer
   x = 1,403.51