Finding the Fourth Proportional to 1,991.46, 2,747.91 and 1,152

Step by Step Solution

1. Step 1: Write the proportion equation
   1,991.46 : 2,747.91 = 1,152 : x
2. Step 2: Convert to fraction form
   1,991.46/2,747.91 = 1,152/x
3. Step 3: Cross multiply
   1,991.46x = 2,747.91 × 1,152
4. Step 4: Simplify right side
   1,991.46x = 3,165,592.32
5. Step 5: Solve for x
   x = 3,165,592.32/1,991.46
6. Step 6: Final answer
   x = 1,589.58