Finding the Fourth Proportional to 1,404.16, 1,936.68 and 1,031.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.16 : 1,936.68 = 1,031.02 : x
2. Step 2: Convert to fraction form
   1,404.16/1,936.68 = 1,031.02/x
3. Step 3: Cross multiply
   1,404.16x = 1,936.68 × 1,031.02
4. Step 4: Simplify right side
   1,404.16x = 1,996,755.81
5. Step 5: Solve for x
   x = 1,996,755.81/1,404.16
6. Step 6: Final answer
   x = 1,422.03