Finding the Fourth Proportional to 1,016.01, 1,402.25 and 818.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.01 : 1,402.25 = 818.91 : x
2. Step 2: Convert to fraction form
   1,016.01/1,402.25 = 818.91/x
3. Step 3: Cross multiply
   1,016.01x = 1,402.25 × 818.91
4. Step 4: Simplify right side
   1,016.01x = 1,148,312.45
5. Step 5: Solve for x
   x = 1,148,312.45/1,016.01
6. Step 6: Final answer
   x = 1,130.22