Finding the Fourth Proportional to 1,147,050.75, 1,582,970.69 and 630,844.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147,050.75 : 1,582,970.69 = 630,844.55 : x
2. Step 2: Convert to fraction form
   1,147,050.75/1,582,970.69 = 630,844.55/x
3. Step 3: Cross multiply
   1,147,050.75x = 1,582,970.69 × 630,844.55
4. Step 4: Simplify right side
   1,147,050.75x = 998,608,438,659.31
5. Step 5: Solve for x
   x = 998,608,438,659.31/1,147,050.75
6. Step 6: Final answer
   x = 870,587.84