Finding the Fourth Proportional to 764,056.96, 1,146,123.51 and 290,779.00

Step by Step Solution

1. Step 1: Write the proportion equation
   764,056.96 : 1,146,123.51 = 290,779.00 : x
2. Step 2: Convert to fraction form
   764,056.96/1,146,123.51 = 290,779.00/x
3. Step 3: Cross multiply
   764,056.96x = 1,146,123.51 × 290,779.00
4. Step 4: Simplify right side
   764,056.96x = 333,268,644,158.56
5. Step 5: Solve for x
   x = 333,268,644,158.56/764,056.96
6. Step 6: Final answer
   x = 436,182.98