Finding the Fourth Proportional to 2,885.81, 4,329.98 and 1,131.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885.81 : 4,329.98 = 1,131.35 : x
2. Step 2: Convert to fraction form
   2,885.81/4,329.98 = 1,131.35/x
3. Step 3: Cross multiply
   2,885.81x = 4,329.98 × 1,131.35
4. Step 4: Simplify right side
   2,885.81x = 4,898,722.87
5. Step 5: Solve for x
   x = 4,898,722.87/2,885.81
6. Step 6: Final answer
   x = 1,697.52