Finding the Fourth Proportional to 1,111.93, 1,533.88 and 902.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.93 : 1,533.88 = 902.34 : x
2. Step 2: Convert to fraction form
   1,111.93/1,533.88 = 902.34/x
3. Step 3: Cross multiply
   1,111.93x = 1,533.88 × 902.34
4. Step 4: Simplify right side
   1,111.93x = 1,384,081.28
5. Step 5: Solve for x
   x = 1,384,081.28/1,111.93
6. Step 6: Final answer
   x = 1,244.76