Finding the Fourth Proportional to 1,633.94, 2,253.90 and 1,191.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,633.94 : 2,253.90 = 1,191.32 : x
2. Step 2: Convert to fraction form
   1,633.94/2,253.90 = 1,191.32/x
3. Step 3: Cross multiply
   1,633.94x = 2,253.90 × 1,191.32
4. Step 4: Simplify right side
   1,633.94x = 2,685,116.15
5. Step 5: Solve for x
   x = 2,685,116.15/1,633.94
6. Step 6: Final answer
   x = 1,643.34