Finding the Fourth Proportional to 1,551.63, 2,141.33 and 853.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551.63 : 2,141.33 = 853.02 : x
2. Step 2: Convert to fraction form
   1,551.63/2,141.33 = 853.02/x
3. Step 3: Cross multiply
   1,551.63x = 2,141.33 × 853.02
4. Step 4: Simplify right side
   1,551.63x = 1,826,597.32
5. Step 5: Solve for x
   x = 1,826,597.32/1,551.63
6. Step 6: Final answer
   x = 1,177.21