Finding the Fourth Proportional to 1,880.91, 2,810.61 and 1,433.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,880.91 : 2,810.61 = 1,433.72 : x
2. Step 2: Convert to fraction form
   1,880.91/2,810.61 = 1,433.72/x
3. Step 3: Cross multiply
   1,880.91x = 2,810.61 × 1,433.72
4. Step 4: Simplify right side
   1,880.91x = 4,029,613.72
5. Step 5: Solve for x
   x = 4,029,613.72/1,880.91
6. Step 6: Final answer
   x = 2,142.37