Finding the Fourth Proportional to 2,885.61, 4,322.98 and 1,423.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885.61 : 4,322.98 = 1,423.05 : x
2. Step 2: Convert to fraction form
   2,885.61/4,322.98 = 1,423.05/x
3. Step 3: Cross multiply
   2,885.61x = 4,322.98 × 1,423.05
4. Step 4: Simplify right side
   2,885.61x = 6,151,809.57
5. Step 5: Solve for x
   x = 6,151,809.57/2,885.61
6. Step 6: Final answer
   x = 2,131.89