Finding the Fourth Proportional to 2,370.72, 3,554.56 and 985.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,370.72 : 3,554.56 = 985.02 : x
2. Step 2: Convert to fraction form
   2,370.72/3,554.56 = 985.02/x
3. Step 3: Cross multiply
   2,370.72x = 3,554.56 × 985.02
4. Step 4: Simplify right side
   2,370.72x = 3,501,312.69
5. Step 5: Solve for x
   x = 3,501,312.69/2,370.72
6. Step 6: Final answer
   x = 1,476.90