Finding the Fourth Proportional to 1,948.17, 2,688.48 and 1,162.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948.17 : 2,688.48 = 1,162.20 : x
2. Step 2: Convert to fraction form
   1,948.17/2,688.48 = 1,162.20/x
3. Step 3: Cross multiply
   1,948.17x = 2,688.48 × 1,162.20
4. Step 4: Simplify right side
   1,948.17x = 3,124,551.46
5. Step 5: Solve for x
   x = 3,124,551.46/1,948.17
6. Step 6: Final answer
   x = 1,603.84