Finding the Fourth Proportional to 1,476.16, 2,210.64 and 744.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,476.16 : 2,210.64 = 744.72 : x
2. Step 2: Convert to fraction form
   1,476.16/2,210.64 = 744.72/x
3. Step 3: Cross multiply
   1,476.16x = 2,210.64 × 744.72
4. Step 4: Simplify right side
   1,476.16x = 1,646,307.82
5. Step 5: Solve for x
   x = 1,646,307.82/1,476.16
6. Step 6: Final answer
   x = 1,115.26