Finding the Fourth Proportional to 1,611.02, 2,223.40 and 948.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,611.02 : 2,223.40 = 948.12 : x
2. Step 2: Convert to fraction form
   1,611.02/2,223.40 = 948.12/x
3. Step 3: Cross multiply
   1,611.02x = 2,223.40 × 948.12
4. Step 4: Simplify right side
   1,611.02x = 2,108,050.01
5. Step 5: Solve for x
   x = 2,108,050.01/1,611.02
6. Step 6: Final answer
   x = 1,308.52