Finding the Fourth Proportional to 915,562.25, 1,263,340.72 and 507,667.06

Step by Step Solution

1. Step 1: Write the proportion equation
   915,562.25 : 1,263,340.72 = 507,667.06 : x
2. Step 2: Convert to fraction form
   915,562.25/1,263,340.72 = 507,667.06/x
3. Step 3: Cross multiply
   915,562.25x = 1,263,340.72 × 507,667.06
4. Step 4: Simplify right side
   915,562.25x = 641,356,466,252.34
5. Step 5: Solve for x
   x = 641,356,466,252.34/915,562.25
6. Step 6: Final answer
   x = 700,505.58