Finding the Fourth Proportional to 2,476.61, 3,712.53 and 1,089.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,476.61 : 3,712.53 = 1,089.69 : x
2. Step 2: Convert to fraction form
   2,476.61/3,712.53 = 1,089.69/x
3. Step 3: Cross multiply
   2,476.61x = 3,712.53 × 1,089.69
4. Step 4: Simplify right side
   2,476.61x = 4,045,496.98
5. Step 5: Solve for x
   x = 4,045,496.98/2,476.61
6. Step 6: Final answer
   x = 1,633.48