Finding the Fourth Proportional to 1,880.01, 2,816.82 and 1,329.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,880.01 : 2,816.82 = 1,329.50 : x
2. Step 2: Convert to fraction form
   1,880.01/2,816.82 = 1,329.50/x
3. Step 3: Cross multiply
   1,880.01x = 2,816.82 × 1,329.50
4. Step 4: Simplify right side
   1,880.01x = 3,744,962.19
5. Step 5: Solve for x
   x = 3,744,962.19/1,880.01
6. Step 6: Final answer
   x = 1,991.99