Finding the Fourth Proportional to 917,078.03, 1,263,485.89 and 709,633.18

Step by Step Solution

1. Step 1: Write the proportion equation
   917,078.03 : 1,263,485.89 = 709,633.18 : x
2. Step 2: Convert to fraction form
   917,078.03/1,263,485.89 = 709,633.18/x
3. Step 3: Cross multiply
   917,078.03x = 1,263,485.89 × 709,633.18
4. Step 4: Simplify right side
   917,078.03x = 896,611,510,005.83
5. Step 5: Solve for x
   x = 896,611,510,005.83/917,078.03
6. Step 6: Final answer
   x = 977,682.90