Finding the Fourth Proportional to 1,898.72, 2,848.32 and 744.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,898.72 : 2,848.32 = 744.32 : x
2. Step 2: Convert to fraction form
   1,898.72/2,848.32 = 744.32/x
3. Step 3: Cross multiply
   1,898.72x = 2,848.32 × 744.32
4. Step 4: Simplify right side
   1,898.72x = 2,120,061.54
5. Step 5: Solve for x
   x = 2,120,061.54/1,898.72
6. Step 6: Final answer
   x = 1,116.57