Finding the Fourth Proportional to 915,499.98, 1,373,194.59 and 409,925.16

Step by Step Solution

1. Step 1: Write the proportion equation
   915,499.98 : 1,373,194.59 = 409,925.16 : x
2. Step 2: Convert to fraction form
   915,499.98/1,373,194.59 = 409,925.16/x
3. Step 3: Cross multiply
   915,499.98x = 1,373,194.59 × 409,925.16
4. Step 4: Simplify right side
   915,499.98x = 562,907,012,016.88
5. Step 5: Solve for x
   x = 562,907,012,016.88/915,499.98
6. Step 6: Final answer
   x = 614,862.94