Finding the Fourth Proportional to 850,080.56, 1,173,111.06 and 468,106.40

Step by Step Solution

1. Step 1: Write the proportion equation
   850,080.56 : 1,173,111.06 = 468,106.40 : x
2. Step 2: Convert to fraction form
   850,080.56/1,173,111.06 = 468,106.40/x
3. Step 3: Cross multiply
   850,080.56x = 1,173,111.06 × 468,106.40
4. Step 4: Simplify right side
   850,080.56x = 549,140,795,096.78
5. Step 5: Solve for x
   x = 549,140,795,096.78/850,080.56
6. Step 6: Final answer
   x = 645,986.77