Finding the Fourth Proportional to 2,047.76, 3,070.50 and 1,215.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.76 : 3,070.50 = 1,215.16 : x
2. Step 2: Convert to fraction form
   2,047.76/3,070.50 = 1,215.16/x
3. Step 3: Cross multiply
   2,047.76x = 3,070.50 × 1,215.16
4. Step 4: Simplify right side
   2,047.76x = 3,731,148.78
5. Step 5: Solve for x
   x = 3,731,148.78/2,047.76
6. Step 6: Final answer
   x = 1,822.06