Finding the Fourth Proportional to 756,938.91, 1,134,123.06 and 456,788.79

Step by Step Solution

1. Step 1: Write the proportion equation
   756,938.91 : 1,134,123.06 = 456,788.79 : x
2. Step 2: Convert to fraction form
   756,938.91/1,134,123.06 = 456,788.79/x
3. Step 3: Cross multiply
   756,938.91x = 1,134,123.06 × 456,788.79
4. Step 4: Simplify right side
   756,938.91x = 518,054,700,288.50
5. Step 5: Solve for x
   x = 518,054,700,288.50/756,938.91
6. Step 6: Final answer
   x = 684,407.54