Finding the Fourth Proportional to 2,549.34, 3,518.13 and 1,430.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.34 : 3,518.13 = 1,430.21 : x
2. Step 2: Convert to fraction form
   2,549.34/3,518.13 = 1,430.21/x
3. Step 3: Cross multiply
   2,549.34x = 3,518.13 × 1,430.21
4. Step 4: Simplify right side
   2,549.34x = 5,031,670.82
5. Step 5: Solve for x
   x = 5,031,670.82/2,549.34
6. Step 6: Final answer
   x = 1,973.72