Finding the Fourth Proportional to 1,857, 2,562.72 and 1,158

Step by Step Solution

1. Step 1: Write the proportion equation
   1,857 : 2,562.72 = 1,158 : x
2. Step 2: Convert to fraction form
   1,857/2,562.72 = 1,158/x
3. Step 3: Cross multiply
   1,857x = 2,562.72 × 1,158
4. Step 4: Simplify right side
   1,857x = 2,967,629.76
5. Step 5: Solve for x
   x = 2,967,629.76/1,857
6. Step 6: Final answer
   x = 1,598.08