Finding the Fourth Proportional to 1,402.98, 2,100.37 and 985.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.98 : 2,100.37 = 985.07 : x
2. Step 2: Convert to fraction form
   1,402.98/2,100.37 = 985.07/x
3. Step 3: Cross multiply
   1,402.98x = 2,100.37 × 985.07
4. Step 4: Simplify right side
   1,402.98x = 2,069,003.93
5. Step 5: Solve for x
   x = 2,069,003.93/1,402.98
6. Step 6: Final answer
   x = 1,474.72