Finding the Fourth Proportional to 1,047,196.49, 1,570,706.98 and 415,940.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047,196.49 : 1,570,706.98 = 415,940.81 : x
2. Step 2: Convert to fraction form
   1,047,196.49/1,570,706.98 = 415,940.81/x
3. Step 3: Cross multiply
   1,047,196.49x = 1,570,706.98 × 415,940.81
4. Step 4: Simplify right side
   1,047,196.49x = 653,321,124,640.47
5. Step 5: Solve for x
   x = 653,321,124,640.47/1,047,196.49
6. Step 6: Final answer
   x = 623,876.35