Finding the Fourth Proportional to 911.82, 1,360.18 and 899.94

Step by Step Solution

1. Step 1: Write the proportion equation
   911.82 : 1,360.18 = 899.94 : x
2. Step 2: Convert to fraction form
   911.82/1,360.18 = 899.94/x
3. Step 3: Cross multiply
   911.82x = 1,360.18 × 899.94
4. Step 4: Simplify right side
   911.82x = 1,224,080.39
5. Step 5: Solve for x
   x = 1,224,080.39/911.82
6. Step 6: Final answer
   x = 1,342.46