Finding the Fourth Proportional to 1,150,196.72, 1,587,271.52 and 667,042.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150,196.72 : 1,587,271.52 = 667,042.08 : x
2. Step 2: Convert to fraction form
   1,150,196.72/1,587,271.52 = 667,042.08/x
3. Step 3: Cross multiply
   1,150,196.72x = 1,587,271.52 × 667,042.08
4. Step 4: Simplify right side
   1,150,196.72x = 1,058,776,896,225.56
5. Step 5: Solve for x
   x = 1,058,776,896,225.56/1,150,196.72
6. Step 6: Final answer
   x = 920,518.10