Finding the Fourth Proportional to 2,457.18, 3,687.12 and 1,051.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,457.18 : 3,687.12 = 1,051.47 : x
2. Step 2: Convert to fraction form
   2,457.18/3,687.12 = 1,051.47/x
3. Step 3: Cross multiply
   2,457.18x = 3,687.12 × 1,051.47
4. Step 4: Simplify right side
   2,457.18x = 3,876,896.07
5. Step 5: Solve for x
   x = 3,876,896.07/2,457.18
6. Step 6: Final answer
   x = 1,577.78