Finding the Fourth Proportional to 1,145,140.76, 1,580,342.46 and 635,890.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145,140.76 : 1,580,342.46 = 635,890.52 : x
2. Step 2: Convert to fraction form
   1,145,140.76/1,580,342.46 = 635,890.52/x
3. Step 3: Cross multiply
   1,145,140.76x = 1,580,342.46 × 635,890.52
4. Step 4: Simplify right side
   1,145,140.76x = 1,004,924,788,667.48
5. Step 5: Solve for x
   x = 1,004,924,788,667.48/1,145,140.76
6. Step 6: Final answer
   x = 877,555.69