Finding the Fourth Proportional to 1,562.54, 2,156.22 and 1,121.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,562.54 : 2,156.22 = 1,121.18 : x
2. Step 2: Convert to fraction form
   1,562.54/2,156.22 = 1,121.18/x
3. Step 3: Cross multiply
   1,562.54x = 2,156.22 × 1,121.18
4. Step 4: Simplify right side
   1,562.54x = 2,417,499.96
5. Step 5: Solve for x
   x = 2,417,499.96/1,562.54
6. Step 6: Final answer
   x = 1,547.17