Finding the Fourth Proportional to 921,667.95, 1,271,908.04 and 513,795.69

Step by Step Solution

1. Step 1: Write the proportion equation
   921,667.95 : 1,271,908.04 = 513,795.69 : x
2. Step 2: Convert to fraction form
   921,667.95/1,271,908.04 = 513,795.69/x
3. Step 3: Cross multiply
   921,667.95x = 1,271,908.04 × 513,795.69
4. Step 4: Simplify right side
   921,667.95x = 653,500,866,459.37
5. Step 5: Solve for x
   x = 653,500,866,459.37/921,667.95
6. Step 6: Final answer
   x = 709,041.54