Finding the Fourth Proportional to 1,551.57, 2,141.16 and 852.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551.57 : 2,141.16 = 852.99 : x
2. Step 2: Convert to fraction form
   1,551.57/2,141.16 = 852.99/x
3. Step 3: Cross multiply
   1,551.57x = 2,141.16 × 852.99
4. Step 4: Simplify right side
   1,551.57x = 1,826,388.07
5. Step 5: Solve for x
   x = 1,826,388.07/1,551.57
6. Step 6: Final answer
   x = 1,177.12