Finding the Fourth Proportional to 1,742.31, 2,613.06 and 1,012.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,742.31 : 2,613.06 = 1,012.50 : x
2. Step 2: Convert to fraction form
   1,742.31/2,613.06 = 1,012.50/x
3. Step 3: Cross multiply
   1,742.31x = 2,613.06 × 1,012.50
4. Step 4: Simplify right side
   1,742.31x = 2,645,723.25
5. Step 5: Solve for x
   x = 2,645,723.25/1,742.31
6. Step 6: Final answer
   x = 1,518.51