Finding the Fourth Proportional to 1,533.82, 2,116.27 and 904.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,533.82 : 2,116.27 = 904.36 : x
2. Step 2: Convert to fraction form
   1,533.82/2,116.27 = 904.36/x
3. Step 3: Cross multiply
   1,533.82x = 2,116.27 × 904.36
4. Step 4: Simplify right side
   1,533.82x = 1,913,869.94
5. Step 5: Solve for x
   x = 1,913,869.94/1,533.82
6. Step 6: Final answer
   x = 1,247.78