Finding the Fourth Proportional to 1,419.16, 2,126.04 and 870.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.16 : 2,126.04 = 870.52 : x
2. Step 2: Convert to fraction form
   1,419.16/2,126.04 = 870.52/x
3. Step 3: Cross multiply
   1,419.16x = 2,126.04 × 870.52
4. Step 4: Simplify right side
   1,419.16x = 1,850,760.34
5. Step 5: Solve for x
   x = 1,850,760.34/1,419.16
6. Step 6: Final answer
   x = 1,304.12