Finding the Fourth Proportional to 1,521.16, 2,099.20 and 848.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521.16 : 2,099.20 = 848.98 : x
2. Step 2: Convert to fraction form
   1,521.16/2,099.20 = 848.98/x
3. Step 3: Cross multiply
   1,521.16x = 2,099.20 × 848.98
4. Step 4: Simplify right side
   1,521.16x = 1,782,178.82
5. Step 5: Solve for x
   x = 1,782,178.82/1,521.16
6. Step 6: Final answer
   x = 1,171.59