Finding the Fourth Proportional to 1,148,501.25, 1,722,620.52 and 307,118.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,148,501.25 : 1,722,620.52 = 307,118.61 : x
2. Step 2: Convert to fraction form
   1,148,501.25/1,722,620.52 = 307,118.61/x
3. Step 3: Cross multiply
   1,148,501.25x = 1,722,620.52 × 307,118.61
4. Step 4: Simplify right side
   1,148,501.25x = 529,048,819,659.88
5. Step 5: Solve for x
   x = 529,048,819,659.88/1,148,501.25
6. Step 6: Final answer
   x = 460,642.79