Finding the Fourth Proportional to 919,081.30, 1,266,926.52 and 646,406.14

Step by Step Solution

1. Step 1: Write the proportion equation
   919,081.30 : 1,266,926.52 = 646,406.14 : x
2. Step 2: Convert to fraction form
   919,081.30/1,266,926.52 = 646,406.14/x
3. Step 3: Cross multiply
   919,081.30x = 1,266,926.52 × 646,406.14
4. Step 4: Simplify right side
   919,081.30x = 818,949,081,456.83
5. Step 5: Solve for x
   x = 818,949,081,456.83/919,081.30
6. Step 6: Final answer
   x = 891,051.84