Finding the Fourth Proportional to 900.03, 1,342.15 and 891.82

Step by Step Solution

1. Step 1: Write the proportion equation
   900.03 : 1,342.15 = 891.82 : x
2. Step 2: Convert to fraction form
   900.03/1,342.15 = 891.82/x
3. Step 3: Cross multiply
   900.03x = 1,342.15 × 891.82
4. Step 4: Simplify right side
   900.03x = 1,196,956.21
5. Step 5: Solve for x
   x = 1,196,956.21/900.03
6. Step 6: Final answer
   x = 1,329.91