Finding the Fourth Proportional to 1,097,259.52, 1,515,077.12 and 842,206.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097,259.52 : 1,515,077.12 = 842,206.72 : x
2. Step 2: Convert to fraction form
   1,097,259.52/1,515,077.12 = 842,206.72/x
3. Step 3: Cross multiply
   1,097,259.52x = 1,515,077.12 × 842,206.72
4. Step 4: Simplify right side
   1,097,259.52x = 1,276,008,131,782.25
5. Step 5: Solve for x
   x = 1,276,008,131,782.25/1,097,259.52
6. Step 6: Final answer
   x = 1,162,904.59