Finding the Fourth Proportional to 740,059.34, 1,021,284.88 and 400,527.50

Step by Step Solution

1. Step 1: Write the proportion equation
   740,059.34 : 1,021,284.88 = 400,527.50 : x
2. Step 2: Convert to fraction form
   740,059.34/1,021,284.88 = 400,527.50/x
3. Step 3: Cross multiply
   740,059.34x = 1,021,284.88 × 400,527.50
4. Step 4: Simplify right side
   740,059.34x = 409,052,673,666.46
5. Step 5: Solve for x
   x = 409,052,673,666.46/740,059.34
6. Step 6: Final answer
   x = 552,729.56