Finding the Fourth Proportional to 1,211,404,479.12, 1,671,739,364.52 and 654,487,969.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,211,404,479.12 : 1,671,739,364.52 = 654,487,969.32 : x
2. Step 2: Convert to fraction form
   1,211,404,479.12/1,671,739,364.52 = 654,487,969.32/x
3. Step 3: Cross multiply
   1,211,404,479.12x = 1,671,739,364.52 × 654,487,969.32
4. Step 4: Simplify right side
   1,211,404,479.12x = 1,094,133,301,917,002,112
5. Step 5: Solve for x
   x = 1,094,133,301,917,002,112/1,211,404,479.12
6. Step 6: Final answer
   x = 903,194,036.98