Finding the Fourth Proportional to 1,407.41, 1,937.69 and 1,158.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.41 : 1,937.69 = 1,158.30 : x
2. Step 2: Convert to fraction form
   1,407.41/1,937.69 = 1,158.30/x
3. Step 3: Cross multiply
   1,407.41x = 1,937.69 × 1,158.30
4. Step 4: Simplify right side
   1,407.41x = 2,244,420.54
5. Step 5: Solve for x
   x = 2,244,420.54/1,407.41
6. Step 6: Final answer
   x = 1,594.72