Finding the Fourth Proportional to 915,667.57, 1,263,467.25 and 610,199.98

Step by Step Solution

1. Step 1: Write the proportion equation
   915,667.57 : 1,263,467.25 = 610,199.98 : x
2. Step 2: Convert to fraction form
   915,667.57/1,263,467.25 = 610,199.98/x
3. Step 3: Cross multiply
   915,667.57x = 1,263,467.25 × 610,199.98
4. Step 4: Simplify right side
   915,667.57x = 770,967,690,680.66
5. Step 5: Solve for x
   x = 770,967,690,680.66/915,667.57
6. Step 6: Final answer
   x = 841,973.35