Finding the Fourth Proportional to 780,123.10, 1,168,216.35 and 622,659.10

Step by Step Solution

1. Step 1: Write the proportion equation
   780,123.10 : 1,168,216.35 = 622,659.10 : x
2. Step 2: Convert to fraction form
   780,123.10/1,168,216.35 = 622,659.10/x
3. Step 3: Cross multiply
   780,123.10x = 1,168,216.35 × 622,659.10
4. Step 4: Simplify right side
   780,123.10x = 727,400,541,096.29
5. Step 5: Solve for x
   x = 727,400,541,096.29/780,123.10
6. Step 6: Final answer
   x = 932,417.64