Finding the Fourth Proportional to 1,354.39, 1,868.06 and 981.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354.39 : 1,868.06 = 981.99 : x
2. Step 2: Convert to fraction form
   1,354.39/1,868.06 = 981.99/x
3. Step 3: Cross multiply
   1,354.39x = 1,868.06 × 981.99
4. Step 4: Simplify right side
   1,354.39x = 1,834,418.69
5. Step 5: Solve for x
   x = 1,834,418.69/1,354.39
6. Step 6: Final answer
   x = 1,354.43