Finding the Fourth Proportional to 1,211,373,483.48, 1,671,695,456.24 and 654,456,528.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,211,373,483.48 : 1,671,695,456.24 = 654,456,528.72 : x
2. Step 2: Convert to fraction form
   1,211,373,483.48/1,671,695,456.24 = 654,456,528.72/x
3. Step 3: Cross multiply
   1,211,373,483.48x = 1,671,695,456.24 × 654,456,528.72
4. Step 4: Simplify right side
   1,211,373,483.48x = 1,094,052,005,367,827,072
5. Step 5: Solve for x
   x = 1,094,052,005,367,827,072/1,211,373,483.48
6. Step 6: Final answer
   x = 903,150,036.13