Finding the Fourth Proportional to 1,402.02, 2,100.71 and 852.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.02 : 2,100.71 = 852.54 : x
2. Step 2: Convert to fraction form
   1,402.02/2,100.71 = 852.54/x
3. Step 3: Cross multiply
   1,402.02x = 2,100.71 × 852.54
4. Step 4: Simplify right side
   1,402.02x = 1,790,935.04
5. Step 5: Solve for x
   x = 1,790,935.04/1,402.02
6. Step 6: Final answer
   x = 1,277.40