Finding the Fourth Proportional to 1,558,012, 2,150,056.56 and 842,620

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558,012 : 2,150,056.56 = 842,620 : x
2. Step 2: Convert to fraction form
   1,558,012/2,150,056.56 = 842,620/x
3. Step 3: Cross multiply
   1,558,012x = 2,150,056.56 × 842,620
4. Step 4: Simplify right side
   1,558,012x = 1,811,680,658,587.20
5. Step 5: Solve for x
   x = 1,811,680,658,587.20/1,558,012
6. Step 6: Final answer
   x = 1,162,815.60