Finding the Fourth Proportional to 1,994.31, 2,988.69 and 1,018.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,994.31 : 2,988.69 = 1,018.35 : x
2. Step 2: Convert to fraction form
   1,994.31/2,988.69 = 1,018.35/x
3. Step 3: Cross multiply
   1,994.31x = 2,988.69 × 1,018.35
4. Step 4: Simplify right side
   1,994.31x = 3,043,532.46
5. Step 5: Solve for x
   x = 3,043,532.46/1,994.31
6. Step 6: Final answer
   x = 1,526.11