Finding the Fourth Proportional to 1,010,907.50, 1,516,332.06 and 262,953.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010,907.50 : 1,516,332.06 = 262,953.50 : x
2. Step 2: Convert to fraction form
   1,010,907.50/1,516,332.06 = 262,953.50/x
3. Step 3: Cross multiply
   1,010,907.50x = 1,516,332.06 × 262,953.50
4. Step 4: Simplify right side
   1,010,907.50x = 398,724,814,757.55
5. Step 5: Solve for x
   x = 398,724,814,757.55/1,010,907.50
6. Step 6: Final answer
   x = 394,422.65