Finding the Fourth Proportional to 1,074,784.50, 1,612,190.59 and 316,453.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074,784.50 : 1,612,190.59 = 316,453.55 : x
2. Step 2: Convert to fraction form
   1,074,784.50/1,612,190.59 = 316,453.55/x
3. Step 3: Cross multiply
   1,074,784.50x = 1,612,190.59 × 316,453.55
4. Step 4: Simplify right side
   1,074,784.50x = 510,183,426,630.01
5. Step 5: Solve for x
   x = 510,183,426,630.01/1,074,784.50
6. Step 6: Final answer
   x = 474,684.39