Finding the Fourth Proportional to 1,530.34, 2,112.35 and 900.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.34 : 2,112.35 = 900.82 : x
2. Step 2: Convert to fraction form
   1,530.34/2,112.35 = 900.82/x
3. Step 3: Cross multiply
   1,530.34x = 2,112.35 × 900.82
4. Step 4: Simplify right side
   1,530.34x = 1,902,846.00
5. Step 5: Solve for x
   x = 1,902,846.00/1,530.34
6. Step 6: Final answer
   x = 1,243.41