Finding the Fourth Proportional to 1,364.31, 2,042.99 and 900.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.31 : 2,042.99 = 900.69 : x
2. Step 2: Convert to fraction form
   1,364.31/2,042.99 = 900.69/x
3. Step 3: Cross multiply
   1,364.31x = 2,042.99 × 900.69
4. Step 4: Simplify right side
   1,364.31x = 1,840,091.88
5. Step 5: Solve for x
   x = 1,840,091.88/1,364.31
6. Step 6: Final answer
   x = 1,348.73