Finding the Fourth Proportional to 1,858.56, 2,563.83 and 1,160.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.56 : 2,563.83 = 1,160.34 : x
2. Step 2: Convert to fraction form
   1,858.56/2,563.83 = 1,160.34/x
3. Step 3: Cross multiply
   1,858.56x = 2,563.83 × 1,160.34
4. Step 4: Simplify right side
   1,858.56x = 2,974,914.50
5. Step 5: Solve for x
   x = 2,974,914.50/1,858.56
6. Step 6: Final answer
   x = 1,600.66