Finding the Fourth Proportional to 1,458.05, 2,180.43 and 1,088.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,458.05 : 2,180.43 = 1,088.12 : x
2. Step 2: Convert to fraction form
   1,458.05/2,180.43 = 1,088.12/x
3. Step 3: Cross multiply
   1,458.05x = 2,180.43 × 1,088.12
4. Step 4: Simplify right side
   1,458.05x = 2,372,561.32
5. Step 5: Solve for x
   x = 2,372,561.32/1,458.05
6. Step 6: Final answer
   x = 1,627.21