Finding the Fourth Proportional to 1,404.02, 1,936.29 and 880.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.02 : 1,936.29 = 880.10 : x
2. Step 2: Convert to fraction form
   1,404.02/1,936.29 = 880.10/x
3. Step 3: Cross multiply
   1,404.02x = 1,936.29 × 880.10
4. Step 4: Simplify right side
   1,404.02x = 1,704,128.83
5. Step 5: Solve for x
   x = 1,704,128.83/1,404.02
6. Step 6: Final answer
   x = 1,213.75