Finding the Fourth Proportional to 1,611.27, 2,223.42 and 948.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,611.27 : 2,223.42 = 948.02 : x
2. Step 2: Convert to fraction form
   1,611.27/2,223.42 = 948.02/x
3. Step 3: Cross multiply
   1,611.27x = 2,223.42 × 948.02
4. Step 4: Simplify right side
   1,611.27x = 2,107,835.51
5. Step 5: Solve for x
   x = 2,107,835.51/1,611.27
6. Step 6: Final answer
   x = 1,308.18