Finding the Fourth Proportional to 1,880.30, 2,821.52 and 955.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,880.30 : 2,821.52 = 955.91 : x
2. Step 2: Convert to fraction form
   1,880.30/2,821.52 = 955.91/x
3. Step 3: Cross multiply
   1,880.30x = 2,821.52 × 955.91
4. Step 4: Simplify right side
   1,880.30x = 2,697,128.63
5. Step 5: Solve for x
   x = 2,697,128.63/1,880.30
6. Step 6: Final answer
   x = 1,434.41