Finding the Fourth Proportional to 1,476.28, 2,215.17 and 1,131.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,476.28 : 2,215.17 = 1,131.82 : x
2. Step 2: Convert to fraction form
   1,476.28/2,215.17 = 1,131.82/x
3. Step 3: Cross multiply
   1,476.28x = 2,215.17 × 1,131.82
4. Step 4: Simplify right side
   1,476.28x = 2,507,173.71
5. Step 5: Solve for x
   x = 2,507,173.71/1,476.28
6. Step 6: Final answer
   x = 1,698.31