Finding the Fourth Proportional to 1,094,547.86, 1,640,705.61 and 620,231.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094,547.86 : 1,640,705.61 = 620,231.30 : x
2. Step 2: Convert to fraction form
   1,094,547.86/1,640,705.61 = 620,231.30/x
3. Step 3: Cross multiply
   1,094,547.86x = 1,640,705.61 × 620,231.30
4. Step 4: Simplify right side
   1,094,547.86x = 1,017,616,973,407.59
5. Step 5: Solve for x
   x = 1,017,616,973,407.59/1,094,547.86
6. Step 6: Final answer
   x = 929,714.46