Finding the Fourth Proportional to 2,054.70, 2,835.42 and 1,170.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.70 : 2,835.42 = 1,170.72 : x
2. Step 2: Convert to fraction form
   2,054.70/2,835.42 = 1,170.72/x
3. Step 3: Cross multiply
   2,054.70x = 2,835.42 × 1,170.72
4. Step 4: Simplify right side
   2,054.70x = 3,319,482.90
5. Step 5: Solve for x
   x = 3,319,482.90/2,054.70
6. Step 6: Final answer
   x = 1,615.56