Finding the Fourth Proportional to 1,856.17, 2,561.83 and 1,059.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.17 : 2,561.83 = 1,059.53 : x
2. Step 2: Convert to fraction form
   1,856.17/2,561.83 = 1,059.53/x
3. Step 3: Cross multiply
   1,856.17x = 2,561.83 × 1,059.53
4. Step 4: Simplify right side
   1,856.17x = 2,714,334.69
5. Step 5: Solve for x
   x = 2,714,334.69/1,856.17
6. Step 6: Final answer
   x = 1,462.33