Finding the Fourth Proportional to 1,707.56, 2,563.12 and 1,513.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,707.56 : 2,563.12 = 1,513.80 : x
2. Step 2: Convert to fraction form
   1,707.56/2,563.12 = 1,513.80/x
3. Step 3: Cross multiply
   1,707.56x = 2,563.12 × 1,513.80
4. Step 4: Simplify right side
   1,707.56x = 3,880,051.06
5. Step 5: Solve for x
   x = 3,880,051.06/1,707.56
6. Step 6: Final answer
   x = 2,272.28