Finding the Fourth Proportional to 1,905.32, 2,628.56 and 1,158.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,905.32 : 2,628.56 = 1,158.68 : x
2. Step 2: Convert to fraction form
   1,905.32/2,628.56 = 1,158.68/x
3. Step 3: Cross multiply
   1,905.32x = 2,628.56 × 1,158.68
4. Step 4: Simplify right side
   1,905.32x = 3,045,649.65
5. Step 5: Solve for x
   x = 3,045,649.65/1,905.32
6. Step 6: Final answer
   x = 1,598.50