Finding the Fourth Proportional to 1,548.32, 2,136.72 and 849.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548.32 : 2,136.72 = 849.74 : x
2. Step 2: Convert to fraction form
   1,548.32/2,136.72 = 849.74/x
3. Step 3: Cross multiply
   1,548.32x = 2,136.72 × 849.74
4. Step 4: Simplify right side
   1,548.32x = 1,815,656.45
5. Step 5: Solve for x
   x = 1,815,656.45/1,548.32
6. Step 6: Final answer
   x = 1,172.66