Finding the Fourth Proportional to 1,019.07, 1,402.79 and 894.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.07 : 1,402.79 = 894.15 : x
2. Step 2: Convert to fraction form
   1,019.07/1,402.79 = 894.15/x
3. Step 3: Cross multiply
   1,019.07x = 1,402.79 × 894.15
4. Step 4: Simplify right side
   1,019.07x = 1,254,300.21
5. Step 5: Solve for x
   x = 1,254,300.21/1,019.07
6. Step 6: Final answer
   x = 1,230.83