Finding the Fourth Proportional to 1,558.10, 2,148.41 and 1,061.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558.10 : 2,148.41 = 1,061.03 : x
2. Step 2: Convert to fraction form
   1,558.10/2,148.41 = 1,061.03/x
3. Step 3: Cross multiply
   1,558.10x = 2,148.41 × 1,061.03
4. Step 4: Simplify right side
   1,558.10x = 2,279,511.42
5. Step 5: Solve for x
   x = 2,279,511.42/1,558.10
6. Step 6: Final answer
   x = 1,463.01