Finding the Fourth Proportional to 1,405.02, 1,937.67 and 881.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405.02 : 1,937.67 = 881.10 : x
2. Step 2: Convert to fraction form
   1,405.02/1,937.67 = 881.10/x
3. Step 3: Cross multiply
   1,405.02x = 1,937.67 × 881.10
4. Step 4: Simplify right side
   1,405.02x = 1,707,281.04
5. Step 5: Solve for x
   x = 1,707,281.04/1,405.02
6. Step 6: Final answer
   x = 1,215.13