Finding the Fourth Proportional to 1,085.32, 1,619.24 and 948.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.32 : 1,619.24 = 948.16 : x
2. Step 2: Convert to fraction form
   1,085.32/1,619.24 = 948.16/x
3. Step 3: Cross multiply
   1,085.32x = 1,619.24 × 948.16
4. Step 4: Simplify right side
   1,085.32x = 1,535,298.60
5. Step 5: Solve for x
   x = 1,535,298.60/1,085.32
6. Step 6: Final answer
   x = 1,414.60